Not trying to be rude or anything but you may want to reconsider pricing.
I can run to the store now and get a Pro model, brand new, with two full games, and everything you're offering, but also with a 60 gig hard drive for the same exact price. Or throw 50 dollars more and get an elite, with a bad ass case, two different games and an even bigger HDD, and a HDMI capable system(which yours may be, but just in case it isn't.)
Just a tip to help you sell this thing, Good luck!