I hope they still give support on XP.
Only 2 of my comp are on Vista (came with it) and I leave those to my gf and my daughter. I really hate it.
I would love to try 7 but dont have enough money at the time to build another rig.
The other 7 rigs; one is on FreeNAS one on OSX server, and the others on OSX (cant remember wish version, but its the latest one)
I'm not a big fan of Mac, but for what I do, it give me better results that way (only one of my home comp is Mac... and its for work...)
edit: Didnt wanted to be out of order on that thread, pass by my comments on wich os I'm using and go back on the subject.... I want one....