Like you, I'm looking for a Canon 400D. I found some cheap prices on internet like the one you mention from CCI Camera city. Too nice to be true, so I dug deeper and found pretty bad reviews/rating about this resseller in particular. I do not know how much you can trust this can of ratings, but when they are so negative, I would be very cautios. You can have a look at resellerratings.com.
http://www.resellerratings.com/reseller ... e=c&page=5
My conclusion is that if you find a price 20+% below average price from major resseller, you are going to sign-up for troubles... I do not expect anymore to get the 400D body for less than $600.