Previously i mentioned the new hit cap, unbuffed and untalented was 447. The following is a little more information on it and what your hit cap needs to be based on what raid buffs you have
The New Hit Cap:
* What is the new hit cap at level 80?
o Blizzard removed the 99% max resist cap (finally). So the hit cap is 17%.
"Also, note that with the wotlk patch you can completely eliminate resist chance through hit chance (you can overcome that final 1% resist chance)."
Source: Kalgan http://forums.worldofwarcraft.com/thread.html?topicId=9679398983&sid=2000&pageNo=3#54
o At 80, 1% = 26.23199272 +Hit Rating.
Source: http://elitistjerks.com/f31/t29453-combat_ratings_level_80_a
A) 17% Hit
B) 14% Hit (Suppression & Cataclysm, OR Misery or Faerie Fire (Shadow Priest/Moonkin))
C) 11% Hit (Suppression & Cataclysm, AND Misery or Faerie Fire (Shadow Priest/Moonkin))
A) 17% = 446 +Hit Rating
B) 14% = 367 +Hit Rating
C) 11% = 289 +Hit Rating
taken from
http://forums.worldofwarcraft.com/thread.html;jsessionid=F3A6FB61FA3BDD3A0C468D8E784563A4.app25_02?topicId=12065092735&sid=1&pageNo=1
So with talents we can lower the hit cap to 367 by ourselves. Faiere fire will probably always be a buff in our raids so in all likelyhood we will need 289 spell hit (affliction spec) to be completely hit capped.