If you are a tinkerer, you could (most likely, depending on model) use a custom firmware such as Magic Lantern. Gives you basically anything you could imagine, but that Canon couldn't imagine. http://www.magiclantern.fm/
Magic lantern truly is, well, magic. When my 30D died, I bought an 50D with some ambivalence; I wanted a "real body" and can't justify the price tag any of the #D series, but the 50D can't record video. Then I installed magic lantern, and now it can record video and so much more. Didn't end up shooting much video, but the photography features are so numerous and useful.