Alright so my favorite addon Bosstalk hasn't been updated for Ulduar yet so I went out and decided to make myself a list. To play these soundfiles, copy and paste it into WoW and it should play. I hope you enjoy!
(I'll be doing each section of Ulduar seperately to make things easier..it takes some time to write it all up. Once I finish a section I will edit this post to add it).
The Siege of Ulduar
Flame Leviathan
/script PlaySoundFile("Sound\\Creature\\FlameLeviathan\\UR_Leviathan_Aggro01.wav")
/script PlaySoundFile("Sound\\Creature\\FlameLeviathan\\UR_Leviathan_Death01.wav")
/script PlaySoundFile("Sound\\Creature\\FlameLeviathan\\UR_Leviathan_HardmodeOn.wav")
/script PlaySoundFile("Sound\\Creature\\FlameLeviathan\\UR_Leviathan_PlayerRiding.wav")
/script PlaySoundFile("Sound\\Creature\\FlameLeviathan\\UR_Leviathan_Slay01.wav")
/script PlaySoundFile("Sound\\Creature\\FlameLeviathan\\UR_Leviathan_TowerEnergy.wav")
/script PlaySoundFile("Sound\\Creature\\FlameLeviathan\\UR_Leviathan_TowerFire.wav")
/script PlaySoundFile("Sound\\Creature\\FlameLeviathan\\UR_Leviathan_TowerFrost.wav")
/script PlaySoundFile("Sound\\Creature\\FlameLeviathan\\UR_Leviathan_TowerNature.wav")
/script PlaySoundFile("Sound\\Creature\\FlameLeviathan\\UR_Leviathan_TowerNone.wav")
Razorscale NPCs
/script PlaySoundFile("Sound\\Creature\\RazorscaleNPC\\UR_RazorscaleNPC_Ground01.wav")
/script PlaySoundFile("Sound\\Creature\\RazorscaleNPC\\UR_RazorscaleNPC_Intro01.wav")
XT-002 Deconstructor
/script PlaySoundFile("Sound\\Creature\\XT002Deconstructor\\UR_XT002_Adds01.wav")
/script PlaySoundFile("Sound\\Creature\\XT002Deconstructor\\UR_XT002_Aggro01.wav")
/script PlaySoundFile("Sound\\Creature\\XT002Deconstructor\\UR_XT002_Berserk01.wav")
/script PlaySoundFile("Sound\\Creature\\XT002Deconstructor\\UR_XT002_Death01.wav")
/script PlaySoundFile("Sound\\Creature\\XT002Deconstructor\\UR_XT002_HeartClose01.wav")
/script PlaySoundFile("Sound\\Creature\\XT002Deconstructor\\UR_XT002_HeartOpen01.wav")
/script PlaySoundFile("Sound\\Creature\\XT002Deconstructor\\UR_XT002_Slay01.wav")
/script PlaySoundFile("Sound\\Creature\\XT002Deconstructor\\UR_XT002_Slay02.wav")
/script PlaySoundFile("Sound\\Creature\\XT002Deconstructor\\UR_XT002_Special01.wav")
Ignis The Furnace Master
/script PlaySoundFile("Sound\\Creature\\IgnisTheFireMaster\\UR_Ignis_Aggro01.wav")
/script PlaySoundFile("Sound\\Creature\\IgnisTheFireMaster\\UR_Ignis_Berserk01.wav")
/script PlaySoundFile("Sound\\Creature\\IgnisTheFireMaster\\UR_Ignis_CreateAdds01.wav")
/script PlaySoundFile("Sound\\Creature\\IgnisTheFireMaster\\UR_Ignis_Death01.wav")
/script PlaySoundFile("Sound\\Creature\\IgnisTheFireMaster\\UR_Ignis_FireSpec01.wav")
/script PlaySoundFile("Sound\\Creature\\IgnisTheFireMaster\\UR_Ignis_FireSpec02.wav")
/script PlaySoundFile("Sound\\Creature\\IgnisTheFireMaster\\UR_Ignis_PourMetal01.wav")
/script PlaySoundFile("Sound\\Creature\\IgnisTheFireMaster\\UR_Ignis_Slay01.wav")
/script PlaySoundFile("Sound\\Creature\\IgnisTheFireMaster\\UR_Ignis_Slay02.wav")
The Antechamber of Ulduar
Assembly of Iron
Steelbreaker
/script PlaySoundFile("Sound\\Creature\\Steelbreaker\\UR_Steelbreaker_Aggro01.wav")
/script PlaySoundFile("Sound\\Creature\\Steelbreaker\\UR_Steelbreaker_Berserk01.wav")
/script PlaySoundFile("Sound\\Creature\\Steelbreaker\\UR_Steelbreaker_Death01.wav")
/script PlaySoundFile("Sound\\Creature\\Steelbreaker\\UR_Steelbreaker_Death02.wav")
/script PlaySoundFile("Sound\\Creature\\Steelbreaker\\UR_Steelbreaker_Power01.wav")
/script PlaySoundFile("Sound\\Creature\\Steelbreaker\\UR_Steelbreaker_Slay01.wav")
/script PlaySoundFile("Sound\\Creature\\Steelbreaker\\UR_Steelbreaker_Slay02.wav")
Stormcaller Brundir
/script PlaySoundFile("Sound\\Creature\\StormcallerBrundir\\UR_Brundir_Aggro01.wav")
/script PlaySoundFile("Sound\\Creature\\StormcallerBrundir\\UR_Brundir_Berserk01.wav")
/script PlaySoundFile("Sound\\Creature\\StormcallerBrundir\\UR_Brundir_Death01.wav")
/script PlaySoundFile("Sound\\Creature\\StormcallerBrundir\\UR_Brundir_Death02.wav")
/script PlaySoundFile("Sound\\Creature\\StormcallerBrundir\\UR_Brundir_Flight01.wav")
/script PlaySoundFile("Sound\\Creature\\StormcallerBrundir\\UR_Brundir_Power01.wav")
/script PlaySoundFile("Sound\\Creature\\StormcallerBrundir\\UR_Brundir_Slay01.wav")
/script PlaySoundFile("Sound\\Creature\\StormcallerBrundir\\UR_Brundir_Slay02.wav")
Runemaster Molgeim
/script PlaySoundFile("Sound\\Creature\\RunemasterMolgeim\\UR_Molgeim_Aggro01.wav")
/script PlaySoundFile("Sound\\Creature\\RunemasterMolgeim\\UR_Molgeim_Berserk01.wav")
/script PlaySoundFile("Sound\\Creature\\RunemasterMolgeim\\UR_Molgeim_Death01.wav")
/script PlaySoundFile("Sound\\Creature\\RunemasterMolgeim\\UR_Molgeim_Death02.wav")
/script PlaySoundFile("Sound\\Creature\\RunemasterMolgeim\\UR_Molgeim_Power01.wav")
/script PlaySoundFile("Sound\\Creature\\RunemasterMolgeim\\UR_Molgeim_Slay01.wav")
/script PlaySoundFile("Sound\\Creature\\RunemasterMolgeim\\UR_Molgeim_Slay02.wav")
/script PlaySoundFile("Sound\\Creature\\RunemasterMolgeim\\UR_Molgeim_Summon01.wav")
Kologarn
/script PlaySoundFile("Sound\\Creature\\Kologarn\\UR_Kologarn_Aggro01.wav")
/script PlaySoundFile("Sound\\Creature\\Kologarn\\UR_Kologarn_Berserk01.wav")
/script PlaySoundFile("Sound\\Creature\\Kologarn\\UR_Kologarn_Death01.wav")
/script PlaySoundFile("Sound\\Creature\\Kologarn\\UR_Kologarn_LArmGone01.wav")
/script PlaySoundFile("Sound\\Creature\\Kologarn\\UR_Kologarn_RArmGone01.wav")
/script PlaySoundFile("Sound\\Creature\\Kologarn\\UR_Kologarn_Slay01.wav")
/script PlaySoundFile("Sound\\Creature\\Kologarn\\UR_Kologarn_Slay02.wav")
/script PlaySoundFile("Sound\\Creature\\Kologarn\\UR_Kologarn_Special02.wav")
/script PlaySoundFile("Sound\\Creature\\Kologarn\\UR_Kologarn_Special01.wav")
Auriaya
/script PlaySoundFile("Sound\\Creature\\Auriaya\\UR_Auriaya_Aggro01.wav")
/script PlaySoundFile("Sound\\Creature\\Auriaya\\UR_Auriaya_Berserk01.wav")
/script PlaySoundFile("Sound\\Creature\\Auriaya\\UR_Auriaya_Death01.wav")
/script PlaySoundFile("Sound\\Creature\\Auriaya\\UR_Auriaya_Slay01.wav")
/script PlaySoundFile("Sound\\Creature\\Auriaya\\UR_Auriaya_Slay02.wav")
The Keepers of Ulduar
Mimiron
/script PlaySoundFile("Sound\\Creature\\Mimiron\\UR_Mimiron_Berserk01.wav")
/script PlaySoundFile("Sound\\Creature\\Mimiron\\UR_Mimiron_HeadActive01.wav")
/script PlaySoundFile("Sound\\Creature\\Mimiron\\UR_Mimiron_HeadDeath01.wav")
/script PlaySoundFile("Sound\\Creature\\Mimiron\\UR_Mimiron_HeadSlay01.wav")
/script PlaySoundFile("Sound\\Creature\\Mimiron\\UR_Mimiron_HeadSlay02.wav")
/script PlaySoundFile("Sound\\Creature\\Mimiron\\UR_Mimiron_TankActive01.wav")
/script PlaySoundFile("Sound\\Creature\\Mimiron\\UR_Mimiron_TankDeath01.wav")
/script PlaySoundFile("Sound\\Creature\\Mimiron\\UR_Mimiron_TankHardIntro01.wav")
/script PlaySoundFile("Sound\\Creature\\Mimiron\\UR_Mimiron_TankIntro01.wav")
/script PlaySoundFile("Sound\\Creature\\Mimiron\\UR_Mimiron_TankSlay01.wav")
/script PlaySoundFile("Sound\\Creature\\Mimiron\\UR_Mimiron_TankSlay02.wav")
/script PlaySoundFile("Sound\\Creature\\Mimiron\\UR_Mimiron_TorsoActive01.wav")
/script PlaySoundFile("Sound\\Creature\\Mimiron\\UR_Mimiron_TorsoDeath01.wav")
/script PlaySoundFile("Sound\\Creature\\Mimiron\\UR_Mimiron_TorsoSlay01.wav")
/script PlaySoundFile("Sound\\Creature\\Mimiron\\UR_Mimiron_TorsoSlay02.wav")
/script PlaySoundFile("Sound\\Creature\\Mimiron\\UR_Mimiron_Voltron01.wav")
/script PlaySoundFile("Sound\\Creature\\Mimiron\\UR_Mimiron_VoltronDeath01.wav")
/script PlaySoundFile("Sound\\Creature\\Mimiron\\UR_Mimiron_VoltronSlay01.wav")
/script PlaySoundFile("Sound\\Creature\\Mimiron\\UR_Mimiron_VoltronSlay02.wav")
/script PlaySoundFile("Sound\\Creature\\Mimiron\\UR_Mimiron_YSHelp01.wav")
Hodir
/script PlaySoundFile("Sound\\Creature\\Hodir\\UR_Hodir_Aggro01.wav")
/script PlaySoundFile("Sound\\Creature\\Hodir\\UR_Hodir_Berserk01.wav")
/script PlaySoundFile("Sound\\Creature\\Hodir\\UR_Hodir_Death01.wav")
/script PlaySoundFile("Sound\\Creature\\Hodir\\UR_Hodir_FlashFreeze01.wav")
/script PlaySoundFile("Sound\\Creature\\Hodir\\UR_Hodir_Slay01.wav")
/script PlaySoundFile("Sound\\Creature\\Hodir\\UR_Hodir_Slay02.wav")
/script PlaySoundFile("Sound\\Creature\\Hodir\\UR_Hodir_Stalactite01.wav")
/script PlaySoundFile("Sound\\Creature\\Hodir\\UR_Hodir_YSHelp01.wav")
Thorim
/script PlaySoundFile("Sound\\Creature\\Thorim\\UR_Thorim_Berserk01.wav")
/script PlaySoundFile("Sound\\Creature\\Thorim\\UR_Thorim_Defeated01.wav")
/script PlaySoundFile("Sound\\Creature\\Thorim\\UR_Thorim_HardEpi01.wav")
/script PlaySoundFile("Sound\\Creature\\Thorim\\UR_Thorim_HardEpi02.wav")
/script PlaySoundFile("Sound\\Creature\\Thorim\\UR_Thorim_HardEpi03.wav")
/script PlaySoundFile("Sound\\Creature\\Thorim\\UR_Thorim_JumpDown01.wav")
/script PlaySoundFile("Sound\\Creature\\Thorim\\UR_Thorim_Misc01.wav")
/script PlaySoundFile("Sound\\Creature\\Thorim\\UR_Thorim_Misc02.wav")
/script PlaySoundFile("Sound\\Creature\\Thorim\\UR_Thorim_Misc03.wav")
/script PlaySoundFile("Sound\\Creature\\Thorim\\UR_Thorim_NormEpi01.wav")
/script PlaySoundFile("Sound\\Creature\\Thorim\\UR_Thorim_NormEpi02.wav")
/script PlaySoundFile("Sound\\Creature\\Thorim\\UR_Thorim_NormEpi03.wav")
/script PlaySoundFile("Sound\\Creature\\Thorim\\UR_Thorim_P1Wipe01.wav")
/script PlaySoundFile("Sound\\Creature\\Thorim\\UR_Thorim_Slay01.wav")
/script PlaySoundFile("Sound\\Creature\\Thorim\\UR_Thorim_Slay02.wav")
/script PlaySoundFile("Sound\\Creature\\Thorim\\UR_Thorim_Start01.wav")
/script PlaySoundFile("Sound\\Creature\\Thorim\\UR_Thorim_Start02.wav")
/script PlaySoundFile("Sound\\Creature\\Thorim\\UR_Thorim_YSHelp01.wav")
Freya Encounter
Freya
/script PlaySoundFile("Sound\\Creature\\Freya\\UR_Freya_Adds01.wav")
/script PlaySoundFile("Sound\\Creature\\Freya\\UR_Freya_Adds02.wav")
/script PlaySoundFile("Sound\\Creature\\Freya\\UR_Freya_Adds03.wav")
/script PlaySoundFile("Sound\\Creature\\Freya\\UR_Freya_Aggro01.wav")
/script PlaySoundFile("Sound\\Creature\\Freya\\UR_Freya_AggroElder01.wav")
/script PlaySoundFile("Sound\\Creature\\Freya\\UR_Freya_Berserk01.wav")
/script PlaySoundFile("Sound\\Creature\\Freya\\UR_Freya_Death01.wav")
/script PlaySoundFile("Sound\\Creature\\Freya\\UR_Freya_Slay01.wav")
/script PlaySoundFile("Sound\\Creature\\Freya\\UR_Freya_Slay02.wav")
Elder Brightleaf
/script PlaySoundFile("Sound\\Creature\\ElderBrightleaf\\UR_Brightleaf_Aggro01.wav")
/script PlaySoundFile("Sound\\Creature\\ElderBrightleaf\\UR_Brightleaf_Death01.wav")
/script PlaySoundFile("Sound\\Creature\\ElderBrightleaf\\UR_Brightleaf_Slay01.wav")
/script PlaySoundFile("Sound\\Creature\\ElderBrightleaf\\UR_Brightleaf_Slay02.wav")
Elder Ironbranch
/script PlaySoundFile("Sound\\Creature\\ElderIronbranch\\UR_Ironbranch_Aggro01.wav")
/script PlaySoundFile("Sound\\Creature\\ElderIronbranch\\UR_Ironbranch_Death01.wav")
/script PlaySoundFile("Sound\\Creature\\ElderIronbranch\\UR_Ironbranch_Slay01.wav")
/script PlaySoundFile("Sound\\Creature\\ElderIronbranch\\UR_Ironbranch_Slay02.wav")
Elder Stonebark
/script PlaySoundFile("Sound\\Creature\\ElderStonebark\\UR_Stonebark_Aggro01.wav")
/script PlaySoundFile("Sound\\Creature\\ElderStonebark\\UR_Stonebark_Death01.wav")
/script PlaySoundFile("Sound\\Creature\\ElderStonebark\\UR_Stonebark_Slay01.wav")
/script PlaySoundFile("Sound\\Creature\\ElderStonebark\\UR_Stonebark_Slay02.wav")
The Descent into Madness
General Vezax
/script PlaySoundFile("Sound\\Creature\\GeneralVezax\\UR_Vezax_Aggro01.wav")
/script PlaySoundFile("Sound\\Creature\\GeneralVezax\\UR_Vezax_Berserk01.wav")
/script PlaySoundFile("Sound\\Creature\\GeneralVezax\\UR_Vezax_Death01.wav")
/script PlaySoundFile("Sound\\Creature\\GeneralVezax\\UR_Vezax_HardMode01.wav")
/script PlaySoundFile("Sound\\Creature\\GeneralVezax\\UR_Vezax_Slay01.wav")
/script PlaySoundFile("Sound\\Creature\\GeneralVezax\\UR_Vezax_Slay02.wav")
Yogg-Saron Encounter
Sara
/script PlaySoundFile("Sound\\Creature\\YoggSaron\\UR_FemaleYogg_Aggro01.wav")
/script PlaySoundFile("Sound\\Creature\\YoggSaron\\UR_FemaleYogg_Help01.wav")
/script PlaySoundFile("Sound\\Creature\\YoggSaron\\UR_FemaleYogg_Help02.wav")
/script PlaySoundFile("Sound\\Creature\\YoggSaron\\UR_FemaleYogg_Insanity01.wav")
/script PlaySoundFile("Sound\\Creature\\YoggSaron\\UR_FemaleYogg_Prefight01.wav")
/script PlaySoundFile("Sound\\Creature\\YoggSaron\\UR_FemaleYogg_Prefight02.wav")
/script PlaySoundFile("Sound\\Creature\\YoggSaron\\UR_FemaleYogg_Slay01.wav")
/script PlaySoundFile("Sound\\Creature\\YoggSaron\\UR_FemaleYogg_Slay02.wav")
/script PlaySoundFile("Sound\\Creature\\YoggSaron\\UR_FemaleYogg_Special01.wav")
/script PlaySoundFile("Sound\\Creature\\YoggSaron\\UR_FemaleYogg_Special02.wav")
Yogg-Saron
/script PlaySoundFile("Sound\\Creature\\YoggSaron\\UR_YoggSaron_PhaseTwo01.wav")
/script PlaySoundFile("Sound\\Creature\\YoggSaron\\UR_YoggSaron_PhaseThree01.wav")
/script PlaySoundFile("Sound\\Creature\\YoggSaron\\UR_YoggSaron_Death01.wav")
/script PlaySoundFile("Sound\\Creature\\YoggSaron\\UR_YoggSaron_Insanity01.wav")
/script PlaySoundFile("Sound\\Creature\\YoggSaron\\UR_YoggSaron_Insanity02.wav")
/script PlaySoundFile("Sound\\Creature\\YoggSaron\\UR_YoggSaron_Slay01.wav")
/script PlaySoundFile("Sound\\Creature\\YoggSaron\\UR_YoggSaron_Slay02.wav")
/script PlaySoundFile("Sound\\Creature\\YoggSaron\\UR_YoggSaron_Tentacle01.wav")
/script PlaySoundFile("Sound\\Creature\\YoggSaron\\UR_YoggSaron_YSVisOne01.wav")
/script PlaySoundFile("Sound\\Creature\\YoggSaron\\UR_YoggSaron_YSVisOne02.wav")
/script PlaySoundFile("Sound\\Creature\\YoggSaron\\UR_YoggSaron_YSVisOne03.wav")
/script PlaySoundFile("Sound\\Creature\\YoggSaron\\UR_YoggSaron_YSVisThree01.wav")
/script PlaySoundFile("Sound\\Creature\\YoggSaron\\UR_YoggSaron_YSVisThree02.wav")
/script PlaySoundFile("Sound\\Creature\\YoggSaron\\UR_YoggSaron_YSVisTwo03.wav")
Celestial Planetarium
Algalon the Observer
/script PlaySoundFile("Sound\Creature\AlgalonTheObserver\UR_Algalon_Adds01.wav")
/script PlaySoundFile("Sound\Creature\AlgalonTheObserver\UR_Algalon_Adds02.wav")
/script PlaySoundFile("Sound\Creature\AlgalonTheObserver\UR_Algalon_Aggro01.wav")
/script PlaySoundFile("Sound\Creature\AlgalonTheObserver\UR_Algalon_Berserk02.wav")
/script PlaySoundFile("Sound\Creature\AlgalonTheObserver\UR_Algalon_Berzerk01.wav")
/script PlaySoundFile("Sound\Creature\AlgalonTheObserver\UR_Algalon_BHole01.wav")
/script PlaySoundFile("Sound\Creature\AlgalonTheObserver\UR_Algalon_Death01.wav")
/script PlaySoundFile("Sound\Creature\AlgalonTheObserver\UR_Algalon_Death02.wav")
/script PlaySoundFile("Sound\Creature\AlgalonTheObserver\UR_Algalon_Death03.wav")
/script PlaySoundFile("Sound\Creature\AlgalonTheObserver\UR_Algalon_Slay01.wav")
/script PlaySoundFile("Sound\Creature\AlgalonTheObserver\UR_Algalon_Slay02.wav")
/script PlaySoundFile("Sound\Creature\AlgalonTheObserver\UR_Algalon_Space01.wav")
/script PlaySoundFile("Sound\Creature\AlgalonTheObserver\UR_Algalon_Special01.wav")
/script PlaySoundFile("Sound\Creature\AlgalonTheObserver\UR_Algalon_Special02.wav")
/script PlaySoundFile("Sound\Creature\AlgalonTheObserver\UR_Algalon_Summon01.wav")
/script PlaySoundFile("Sound\Creature\AlgalonTheObserver\UR_Algalon_Summon02.wav")
/script PlaySoundFile("Sound\Creature\AlgalonTheObserver\UR_Algalon_Summon03.wav")
/script PlaySoundFile("Sound\Creature\AlgalonTheObserver\UR_Algalon_Timer01.wav")
/script PlaySoundFile("Sound\Creature\AlgalonTheObserver\UR_Algalon_Timer02.wav")
/script PlaySoundFile("Sound\Creature\AlgalonTheObserver\UR_Algalon_Timer03.wav")
And there it is..all the bosses of Ulduar. If you think I left anything out, or if you have any comments or requests on different bosses please post in this thread or PM me.