a QUICK scan:
http://www.butterflyphoto.com/search...el+XSi&x=0&y=0
Rebel XSI is the one I've been thinking about pulling the trigger on. Like others have said, lens is the most important thing really.
I am NOT a content producer, I just love taking pictures and am a hobbyist. In the "cheap" DSLR's the rebel XSI is badass at the price.