I want to start this off by saying that I have been using this method since release of wrath. I'm sure I got the basic idea from a guide somewhere but have heavily modified to my liking. That being said, lets do this...
I'm not going to bother wasting time on telling you how to gear. If your having problems there then you have dozens of articles here already telling you. I'm simply going to tell how to simplify it. I'm currently in a casual guild and tank ToC 10 and ToC 25 regulars with this, so it is a viable choice for raiding as well as heroics or leveling.
Glyphs:
For this method it is not required, but I highly suggest Glyph of Cleaving, threat on 3 targets as opposed to 2 is great. Glyph of Revenge is not needed in my opinion. I've never had threat problems.
Talents:
Talent Calculator - World of Warcraft
is the spec I've had for months. I've been considering dropping Concussion Shot and Vigilance for 2 points in Armored to the Teeth or Improved Spell Reflection but never got around to testing it. 3% dmg reduction from vigilance is awesome for my OT, but not really needed with the simplicity of Wrath raiding. With my gear this puts me at roughly... (all unbuffed, no self buffs either)
33.3k Health
49% dodge/parry
25% block, blocking 1147 (unmodified by glyph or crit block)
61% armor
7% hit
25 expertise
2288 ap
Macros:
Shield Block - No hassle revenge with trinket activation and Bloodrage.
#showtooltip Shield Slam
/castrandom Revenge, Shield Slam
/use 13
/use 14
/cast Bloodrage
Devastate - Threat macro.
/castsequence reset=combat/target Cleave, Devastate
Thunder Clap - Shield Block in rotation without wasting toolbar space.
#showtooltip Thunder Clap
/cast Shield Block
/cast Thunder Clap
Charge - Charge, if cooldown then Intercept. If enemy has friendly targeted Intervene.
#showtooltip Charge
/castsequence reset=15 Charge, Intercept
/cast [help] Intervene; [target=targettarget, help] Intervene;
Last Stand - Let your healers know whats up.
#showtooltip Last Stand
/cast Last Stand
/yell Last Stand Activated! I'll lose 12.6k health in 20sec. Be ready healers!
Toolbars:
I use a self modified version of CaithUI (wowinterface.com) which you can see here...
I limit myself to 18 toolbar slots but it's all thats needed. I suggest Shield Slam macro on 1, Threat macro on 2, Thunderclap macro on 3, Shockwave on 4, and everything else where it's comfortable. My preference is Taunt on ctrl+1, Last Stand macro on ctrl+2, Shield Wall on ctrl+3, and Charge macro on ctrl+4 just to make things faster if something goes wrong.
Now what do I do?:
1.) Before every pull Bloodrage > Commanding Shout, you dont' want it to run out too early.
2.) Pull with Heroic Throw followed by an immediate Charge. (caster if there is one, if not go to center of group)
3.) Thunderclap macro asap. This gets your initial aoe agro as well as giving you Shield Block to smooth the healers into the pull.
4.) Take a few steps back to ensure all the mobs are in front of you and Shockwave.
5.) At this point, spam buttons 1 and 2 (Revenge and Threat macros), watch your cooldowns and Thunderclap and Shockwave every chance you get as well. This will keep Sunder up on your target, keep aoe threat with cleave, Shockwave, and Thunderclap, and it will keep your revenge firing off every cooldown along with Shield Slam.
Criticize if you like. But in all truth, wow has become a very dumbed down game and this method works great. Try it if you don't believe it. I'm hoping Cataclysm's talent rebuild will make things interesting again. But until then there's no point in over thinking, so be lazy.