I'm running Linux! :O Ubuntu, to be specific. I'm dual-booting it with Windows 2000.
The interface is very clean, albeit a big foreign. I should get the hang of it soon. It's based on UNIX, just like Mac OS X (Mac's OS), so it has a lot of similarities with it. Hopefully (according to my dad), it'll stop me from spending $1,000+ on a Mac :P
You guys are all Windows people. Linux is a good, if not a little bit nerdy, solution. It's nearly invincible to viruses, too! :D
It's hard to tell anything from the screenshot but the looks, so... how does it look? :P
Or, alternatively, you could share your "auuugh Windows sucks :(" stories. ;D