At work:Windows Vista, Windows XP and Mac OS X 10.4.9.
At home
G5 Imac with OS X 10.4.9 and I quad boot my Dell with:
Ubuntu for internet browsing.
Windows XP for Pro Tools 7 not too mention it runs way faster on my PC than Vista.
Windows Vista: For DX 10 and people who think you have to have the newest Windows.
OS X 10.4.8 for Final Cut Studio 2 and Logic 7.1 and for My Mac freinds who think Macs are the best.
In order of Speed I have noticed that Ubuntu than XP; Vista and OS X run noticeably slower than those two.







