Why settle for a new XBOX when you can make your own HoBOX! The HoBOX is an open source retro-gaming console system based on the Raspberry Pi. It's capable of playing thousands of games made for Atari 2600, Turbographix-16, Nintendo, Super Nintendo, Sega and Playstation. For the controller, a modified XBOX 360 wireless platform is used.
The HoBOX has its own HTML website where all the details are.