P1-1 Xbox Engadget Howto
Ben Heck shows you how to make an Xbox 360, he writes –

The making-of How-To for the Xbox 360 laptop will be in three parts. In today’s segment we’ll discuss the parts list, stripping down an Xbox 360 motherboard, and modding / reattaching the DVD and hard drives. The next installment will cover case design, construction and hacking the LCD display, as well as wiring the video. Part 3 will then describe wiring all the separate parts together, troubleshooting, and finishing up the unit. Full design files will be including along the way. Let’s take a look and prep to get started!

How-To: Make an Xbox 360 laptop (part 1) – Link.