This Instructable/Ikea Hack is going to teach you how I built a glass top desk with ambient lighting.
There is many ways you can do this project but I chose something cheap and simple to work with. So I chose to get my materials at Ikea. Really, you can get your materials in whatever shape/size you desire.
You can also upgrade to an Ambilight-like system instead of pre programmable Ikea lights and use the DIY guide Amblone
to make your RGB LEDs react to the colors on your monitor.
Good luck and I hope you enjoy this Instructable.