In choosing a camera. I've been looking at the Canon XSi, but have noticed that I could get a used 30D for around the same price. Those don't have to be the only 2 options, but I'm looking to spend around 600-650 for a kit. I probably shouldn't even be spending this right now, but I really want one. It won't be for professional work, just random things, but I'll be using it a lot. Thank you!