Hello I'm looking at getting into a DSLR. It's just a hobby for me, but I finally have a little extra coin around. I can make the jump up in the next month or so. I'm currently look at; Nikon D70 Nikon D50 Canon Digital Rebel XT Few questions, is the D70 worth the extra cash over the D50? Also, how does the Canon stack up to the two Nikon models?