I'm about to buy a DSLR and can't decide between the Canon 40D or the\n50D. The price difference is about 0 and I don't know if it's worth\nit. I plan to do mostly natural light photography and would like to\nbe able to shoot indoors with available light. The 50D seems to be\nbetter for this. I'm going to be using the Canon EF-S 17-55mm f/2.8\nIS USM lens.\n\nAny advice will be appreciated.