I couldn't find the link to where I found the XTi body for $509 but here's a place that sells it for $519-
US1photo.com. They seem very legit to me. Also the XTi with kit lens also goes for about $585 on that site too. You can also buy the XTi with the IS lense for about$750 or so.
The're also selling the XSi with kit lens for $740 (free shipping). I'm not sure if they charge sales tax though.
I went to Circuit City a few days back to checked out some Nikons as well as the XTi and the XSi and found the Canons to fit better in my hands. I'm very close to pulling the trigger on the XSi now since it's just $40 more than the XS.
Note- I suggest you pick up the book "Understanding Exposure" by Bryan Peterson as others have suggested to you in the other thread. I just picked up a copy yesterday and I'm 1/3 done with the book. It offers a lot of insights as well useful tips on taking great pictures.
