I used to use an IBM server for a bit of graphics work. I had chucked XP onto it even though XP was specifically supported (yes it was very buggy). I actually really liked that computer (had RAID cards, a 10k SCSI HDD [which I ended up flicking off for about 70% what I paid for the whole unit]), and I still have it. But I don't use it anymore, because it sounded like a ramjet. Currently I use quite a powerful PC I built back 2 years ago. I still run XP on it (although I'll get a linux dualboot once I can be bothered). I have a thing for fast hard drives (couldn't not, after having that sweet SCSI one) so I have a Velociraptor. The other components are high spec, but yeah, I'm a little disappointed I spent so much money and don't really use the features. It's essentially a gaming PC. But I don't play games. :/ Oh well. It was just an expensive lesson hahaha.