As long as we're sharing pictures of our homemade desks, here's mine:
Oak, oak, oak, and more oak. I love oak.
And here's a full build album, including pictures of my wife's desk on the other side of the room:
Everything was done by hand except for the cabinet boxes above the corner desk and the cabinet doors, which I had made by a local cabinetry shop, since I don't have the proper tools and router bits.
This was one of my first major woodworking projects, and I can confirm what jlongster is now learning: you don't know how much you don't know about something until you try and do it yourself.