What's your Operating System?

[arch]

I use Archlinux (64-bit). I once owned a copy of windows xp pro, and someone gave me a copy of vista, but I gave both of them away. With linux I can install all the packages I want, including the desktop environment. There are a few downsides to using this OS. Wine doesn't run as well out of the box as with ubuntu. Flashplayer and penumbra had some problems with 64-bit, but once I installed the necessary 32-bit libraries, they ran fine. The drawbacks are nothing compared to what I experienced with windows.