I'll just toss out some of the gear that I've noticed you'll want and where it drops.
Ranged - Vortex Pinnacle (they added the gun to the loot table); Baradin Wardens crossbow.
Trinkets - Stonecore Heroic (last boss); random drop trinket (mastery/on-use parry); Baradin Wardens exalted trinket.
Weapons - Deadmines (for threat); Stonecore heroic (mastery/parry); AH- If there is a soulblade.
Feet - Rep boots from dragonmaw/wildhammer (pretty much bis pre-raid), valor boots (not as good).