What OS do you use?

Vista SP1 RC + Utorrent :wub:

Mainly OS X, but also Vista and Fedora (uTorrent & Azureus)

I'm using Windows XP sp2 & µTorrent

Vista Ultimate (sadly...) at home and XP Pro at work. I now use uTorrent in both places. I changed from Azureus about 6 weeks ago because uTorrent uses far less resources, and seemed to increase my up and down speeds.

Windows XP SP2 w/ uTorrent and Debian Etch but no torrent client

Windows XP - µTorrent 1.6.1

xp

Xp Sp2

iam using Windows Xp now, i like vista (sexy lol) but i will wait for Vista service pack 5 :P

Windows XP here