Overstock.com has Unreal Championship for the XBox for $23.99 - $5 coupon for new customers = $18.99! Shipping is a flat fee of $2.95! This game is XBox Live compatible. This is a great shooter to play online if you already have or plan to get the XBox Live service!
Click on the link below and the $5 off $10 purchase for new customers pop-up window will be displayed.
XBox: Unreal Championship (XBox Live Compatible) - $18.99!
Overstock (gotapex link)