My wife wants a digital camera and has a canon now with lots of lenses. I decided that the XTi was the best bet for her right now. I see that prices from online retailers range from $515 plus $20 shipping to $799. I am looking for "Body Only". Obviously that would still include a battery and charger and some basic software etc. How much should I be willing to pay to get this camera from a reputable company? I would rather spend a little extra and work with a company that has good ratings but $799 seems like a big jump from $550. Any help would be appreciated.