My workplace looks like this at the moment:
I have a desktop PC running Ubuntu Linux. On that machine, I have a Windows XP virtual machine (to be seen on the 30-inch monitor) and on the very right, there’s my Mac. Hmm. I’m seriously working with 3 OSes at the same time 😯
I’ve been working on a system running Ubuntu 9.10 and even though I’m still a Mac fanboy, I have to admit that Ubuntu has grown to be a really fast, stable and fun system! But who cares? Computers suck anyway 
Side note: I’ll return to Germany for the holidays, fuel up on relaxation and will be back here in England on January 5th. Merry Christmas to you all and have a great new year 2010!