if you plan on doing video and don't plan on buying a mic/mixer, buy the 60D. personally, the flip out screen appeals to me but it's not for everybody.
if you're doing photo, which it sounds like you are, then i have no clue.
also, if you get the T2i, spend the money on some primes like landis suggested. i just got the 50mm f/1.4, it's dope.