Hey guys, I'm just getting into photography as a hobby and its definitely something I would like to become more then a hobby. I took a photography class a few years ago and have been doing alot of research and learning. Im at the step where I would like to buy a SLR and I have no idea which direction I should go. I would prefer to go with canon because I have lenses already from my film rebel and a friend will let me use some of his lenses when I need them. My question is should I go with something like a rebel xti or go for the canon 40D? Pro's & Con's would be amazing, hell any information would be great. and like I said I would like to to become a serious hobby or more as I gain experience so one of my worries about getting an xti would be upgrading within 6 months to a year for something better.