I have been shooting with a 10D for about 3 years now. I really haven't seen a need for an upgrade, the photos are great, and I've only shot about 3200 frames so far. I've decided I am not fully satisfied with my S2 for my "at work" camera(although it's adequate in most situations)so I picked up a Rebel XT. I will mate it with my 28-135 IS for aerial photography. I bought it new at BuyDig for under $500, price was a major consideration.