There is no real conclusive evidence as to which camera truly overheats faster/more. It all depends on the conditions the camera is being used in (Setting, time of day, exposure to sun, lcd brightness, 1st v. 3rd party batteries, clip duration, recording frequency, down time between shots, just to name a few) and what copy of a camera you get (there ARE some bad apples out there). People can say that the t2i will overheat faster because of its plastic body and smaller body, but the same can be said about the 7d being weather sealed, having two processors, and having a metal body. No real true "scientific" test has been conducted yet to truly confirm which one in fact overheats more. As for the skiing comment, I will admit that was a bit ignorant and foolish to say. However, being in the cold does help cool things down, to what extent I don't know, and that's as far as I can back it up. You are going to read stories of BOTH overheating, but keep in mind, these are all case related. Please.
SOURCES:
http://www.dvxuser.com/V6/showthread.php?p=1988797&highlight=overheating
http://www.dvxuser.com/V6/showthread.php?t=201843&highlight=heating
http://www.dvxuser.com/V6/showthread.php?p=1985180&highlight=overheating
http://www.cinema5d.com/viewtopic.php?f=39&t=14591&p=105102&hilit=overheating#p105102
I hate to come across as bashing anyone and acting "retarded." Paul has thrown together some great work and I enjoy watching and learning from his work. Believe me, I too have spent countless hours doing my research and reading up on all the cameras as well, and for me, the t2i was worth it. I'd hate to thread jack and make an uber long post, but if anyone wants me to, I can. Yes I know the 7d is the overall better camera (regarding stills and some video options) but that is why it costs $600 more. Yes I am aware that the t2i doesn't have some features of the 7d, but may I remind you all that these are fricking HDSLRS and if you compare them to a standard prosumer camera you could think of a million reasons why NOT to buy one. Well, most of us know the problems of them, most of us know how to get around these issues, and most of us know the promise that these cameras hold.
Quoting ski.the.east's reply
Lololololol Paul has a perfect point and your just retarded.
You need to gtfo of all HDSLR discussions cuz you just postwhore and have no idea what your talking about
OH RLY???
I will close out with this quote from Barry Green (google him if you want his credentials)
Quoted Quote [[[[I will buy the t2i now, learn to shoot with the shortcommings of the VDSLRs and get "the new breed" at the end of the year or in early 2011... Just my 2c]]]]
I think those are wise 2c. If I was buying into a Canon at this time, I'd go with the t2i as well. It's so incredibly affordable, its disadvantages in video are very minor compared to the more-expensive 7D, and it has a movie-sized frame as opposed to the 5D. t2i seems like the real sweet spot of Canon DSLRs.
:)