I love BZFlag - my favourite game :D
I've done a fair bit of tinkering with running BZFlag portably (ie: from a flashdrive at school/work) on Windows. I might write a how-to regarding this at some stage... I intend to port BZFlag to the PortableApps.com platform for Win32, but this will probably not be done until November/December 2009.
I'm an Ubuntu user, but I use Windows XP when I must.
I also do a bit of web development, etc. (although I have been rather busy with other things lately).