I have a 35mm Rebel k2 which i have been using for a while and learned a lot from and i think i would like to take a go with a DSLR since i have been saving up for some time now. Between the XT and 20D is there really going to be that big of a difference in quality? I've looked at the specs and the 20D dosn't seem to have that much more. What do you think? I would buy the body only and use the lens that came with my K2 until i could save up for a nicer lens. Or do you think i should just stick with the K2 and get some glass for it?