That is a beautiful desk. I also found the link to the underdesk with the peg board to be ingenius. I currently use a glass top corner desk. The glass is pretty awesome because I can use it as a whiteboard :D. However, a smaller corner desk is kind of awful for the 3 monitors I work with.

One problem I see is if you had the desk up against the wall, it would be a huge pain to access everything to say remove drives or add new stuff. Though judging from the picture he doesn't keep it by the wall.

Fantastic design though! Too bad I'm sure it would cost a fortune more to have it done here in Cali :(