The Lego computer was made from an old Dell Dimension 2400 which was laying around Jeremy Duenas' house. He decided to strip it down and build it back up in a case made of Lego. The Lego PC runs Kubuntu Linux (due to him not wanting the XP Pro overheating the plastic Lego bricks). The idea is excellent and very unique. I like how there is a bridge in there and a Lego man sitting in a control centre. Top marks for effort there!!
28 more images of the Lego PC can be found over at Jeremys Blog.