There is only one camera i drool over and that is the 1Dx. If you have the funds go for it. I doubt you would ever regret it. If I didn't have my update plan set in stone I would buy one tomorrow....
Get a rebel for now and wait for mrk III. It will be x300 better. With mrk III, you don't even have to lick the shutter button. Just blink your eye, the camera will do everything for you. It even make coffee while owner going through "DSLR for Dummies".