hello all! i started to gain an interest in photography about a year ago. I went on a photoshoot\ bike test and was able to use a Canon MarkIIn that the photographer had. since then its just snowballed and ive become more and more intrigued by photograpghy. I have been using my point and shoot for a while now, (canon a75) but i really want a dslr. I race motocross and this is where most of my pictures will be. at a track, outside, fast paced type stuff. Like everyone else, im on a budget. in reality though, im a beginner so something that is top of the line would just be a waste since i wouldnt be able to use it to its full potential. im just now doing that with my p.a.s! the rebel XTi got my attention, but mainly because its the only camera that is "mainstream" in the stores around here. the photographer i work with said a 30d would be more up my alley then an XTi. i looked at the 20d and liked the 5fps continous drive\shots. the XTi is only around 3 i believe. what are some of your suggestions? also, is there a place where i can read the differences between the canon series dslrs? (5d, 10d, 20d, 30d, ect) i assume the lower the # the better the camera? i will probably end up looking for a used body\kit for my first, and possible try to save some cash for some glass since, from what i've read, makes more of a difference. in short, i need something with a good fps for the continous shooting in mx, and decent mp since i may (later on) want to put some of the pictures on posters or blow them up and frame them. -thanks!