You can try those freeipod things like xbox360elite4free.com, but you need to sign up for trial offers and refer your friends. If you have 10 friends with CCs who are willing to help, it should be easy. Go for the Stamps.com offer, it costs less than $5.
Otherwise, try pricegrabber.com or other price comparison sites to compare prices at retail and online stores.
you should go on ebay, i see people who are with companies…their bosses give them say 50 xbox’s and say ” go sell those on ebay for £10/$10” and i see people selling them for this price!