Really! I use a few Mac OS X computers for my business, but I keep a Chinese PC clone (*) around for the odd job requiring Linux or Windows.
My wife was sharing the PC, but decided that she was just going to use her HP laptop in the future. So, since all my stuff on the PC was old and crufty, I decided to wipe the disks last night after dinner and clean install SuSE Linux and Windows 2000. What a hassle - it took me an hour, and I don't have everything I need re-installed except for the firewalls and security updates. I decided to just install software as I need it since I use Windows and Linux so seldom now.
Yes, I am a happy Mac user :-)
(*) a nice machine: a little slow, but uses very little power, runs cool, etc. cost me $199 at Frys Electronix