Here's mine!
Buckermann! Tea with the moon! I had that desktop for a while, both in black and white. You get PA's "Ham!" one too? They're rocking cool.
As you can see, I also favour the re-skinned XP, Penny Arcade and am a stoic supported of supercool Winamp 5.
I have a crapload of CGI programs on my PC for my Uni course and general enjoyment. Note the explorer window is open on my VERGE game's directory, too.
This screenshot also shows off my musical and gaming preferences too. Supergrass are very, very good. And, of course, the eponimous "stuff" folder that everyone has on their hard drive somewhere that's full of random junk. Yay.