I'm thinking the same thing. I'm trying very hard to figure out what I would be giving up, switching from the 10D to the Rebel XTi. The main things that I can think of are the thumb aperture control dial, build quality, flash sync, and maybe some custom functions. But the main concern I had, continous AF, seems to be no problem at all. Unlike the first Digital Rebel, AI Servo is available in all exposure modes with the Rebel XTi.Originally Posted by Stephen Lutz