I've playied as a shadow priest in TBC, but I pretty much got bored of this class and I wanted to reroll a Protection Paladin for WotLK, so I started to read about Paladins cause I've never playied one except 20-30 games as a Holy Paladin in arena.
I'm thinking to get Blacksmithing for the first profession cause it provides me with 4 more sockets on waist, gloves, wrists and 1h weapon, and I hope that Armorsmiths will get a second meta socket. For the second profession I think I'll go for Jewelcrafting(one of my friends will go for Mining to provide me with mats for BS and JWL) to get the trinket to get a boost till I get my hands on some uber Naxx trinkets.
I've made an idea about what gear I would like to wear before I'll start serious raiding:
Head:
Tempered Titansteel Helm - Item - World of warcraft (BoE Blacksmithing)
- mats to craft it: 4 Saronite Bars, 4 Titansteel Bars, 1 Frozen Orb
Arcane-Shielded Helm - Item - World of Warcraft (The Nexus Heroic)
Neck:
Titanium Earthguard Chain - Item - World of Warcraft (BoE Jewelcrafting)
- mats to craft it: 2 Titanium Bar, 4 Dragon's Eye, 6 Ethernal Life, 6 Ethernal Earth, 1 Frozen Orb
Shoulders:
Crusader's Square Pauldrons - Item - World of Warcraft (BoE Stratholme drop)
Back:
Durable Nerubhide Cape - Item - World of Warcraft (BoE Leatherworking)
- mats to craft it: 2 Arctic Furs, 40 Nerubian Chitin, 1 Frozen Orb
Cloak of the Enemy - Item - World of Warcraft (The Nexus Heroic)
Chest:
Reanimated Armor - Item - World of Warcraft (Utgarde Pinnacle Normal)
Wrists:
Svala's Bloodied Shackles - Item - World of Warcraft (Utgarde Pinnacle Normal)
Gloves:
Daunting Handguards - Item - World of Warcraft (BoE Blacksmithing)
- mats to craft it: 12 Saronite Bar, 1 Eternal Earth
Waist:
Girdle of Obscuring - Item - World of Warcraft (The Oculus Normal)
Legs:
Daunting Legplates - Item - World of Warcraft (BoE Blacksmithing)
- mats to craft it: 14 Saronite Bar, 1 Eternal Earth
Boots:
Tempered Titansteel Treads - Item - World of Warcraft (BoE Blacksmithing)
- mats to craft it: 4 Saronite Bar, 3 Titansteel Bar, 1 Frozen Orb
Slaughterhouse Sabatons - Item - World of Warcraft (Stratholme Normal)
Rings:
Titanium Earthguard Ring - Item - World of Warcraft (BoE Jewelcrafting)
- mats to craft it: 2 Titanium Bars, 4 Dragon's Eye, 4 Eternal Life, 4 Eternal Earth, 1 Frozen Orb
Solid Platinum Band - Item - World of Warcraft (Dungeon Quest Reward)
Trinkets:
Figurine - Monarch Crab - Item - World of Warcraft (BoP Jewelcrafting) (rare version, waiting for epic)
- mats to craft it: 2 Titanium Bars, 2 Monarch Topaz, 1 Forest Emerald
?? - I don't know anything about other good tanking trinkets.
Main Hand:
Eternally Folded Blade - Item - World of Warcraft (Halls of Lightning Normal)
Shield:
Titansteel Shield Wall - Item - World of Warcraft (BoE Blacksmithing)
- mats to craft it: 4 Saronite Bar, 3 Titan Steel Bar, 1 Frozen Orb