another local agility photographer bought a 7D when he lost the shutter in is 50D, because he doesn't get pro turnaround like I do with CPS service LOL

anyway, he shot 3 trials with the 7D while his 50d was at repair, and said there is no noticable difference between the two cameras as far as image/print quality

the fps are fine, mine keep up with the fastest bordercollies weaving or whatever, in low light conditions
heck, I plan on having two more 50D's for the BC Nationals next fall (guess who's the official on that one???? )

also, except for weaves, I never take more than a burst of 3 images ... too many clicks = too many pics LOL