Ben Heck was commissioned to produce this Xbox 360 lap top and it looks as though he's done an amazing job.
Features
1) 17″ wide (diagonal) 1280×720 progressive-scan LCD VGA monitor (for HD-level resolutions)
2) Water-cooled with custom-built radiator. Allows for a slimmer main body versus the mammoth heat sinks in a stock 360.
3) Built-in keyboard and Wi-Fi.
4) USB hub allows original number of 3 USB ports for user.
5) All-aluminum case, except for plastic keyboard / ring of light / screen control area.
6) Uses single customized “expanded” power supply brick for both screen and Xbox 360.


You can visit Ben's website to see his step by step guide of how he created the unit.
Source : Ben Heck's website via TecheBlog