I have the T2i because of the price, if I had the money I would have gotten the 7D for the build. That being said I am completely happy with the T2i, The body is the lest expensive part of the system, it is just a start. I have spent that $1K I saved on the body on lenses, and stuff to make the camera work as a video camera, and I’m not done yet.
Zack, you state that you will be using the T2i (and this goes for every DSLR) as a handheld. Well you most buy some extra gear to make it work well. First make sure you are getting IS lenses. The problem is right now you have to spend big bucks to get faster constant aperture lenses that also have IS built into them. Both are needed for video handheld work. Then you will also want to get a sholder rig of some type and they range from $300-3000.
Search the forum and there is a lot of discussion on equipment options. WIth DSLR the spending never stops.