As for me, I use a PC running Vista, but my next computer will run Linux. Apple's too pretentious for my taste. Their machines do work well, I will give them that, but many of it's users tend to be Mac Snobs who think everything Steve Jobs sh*ts out his *ss is gold and anything else is crap. I am NOT talking about every Mac user, it's just a general perception. Mac's also seem to limit the kinds of changes you can do to them as compared to PC's running x86 or similar architecture. Windows works OK most of the time, but it can be a PITA. Like Apple, MS seems to limit user options as to what to do, but still has more configuration options. This is a good idea for most users though as it keeps them from getting into too much trouble. MS also seems to think it's sh*t doesn't stink and charges way too much for any non-oe distribution of it's products. I riced out Office 2007 home and student at $150. At that price I didn't buy it and downloaded Open Office instead. Works pretty good, runs the Office file extensions and can't argue with free. I have Vista and like it in some ways, hate it in others. After 80 patches it seems to be stable, but when I did my reinstall a few weeks back I did notice some stability problems. As for Linux, I haven't tried it yet, but have an old computer I plan on installing it on. The big issue with Linux is most of the distributions are not easy to use, or even download for the casual user who gets lost in the Windows Control Panel. Ubuntu seems to be the one to use (I have the live CD for it), but it won't run this old Windows 98 machine I have for the experiment, or at least I don't think it will work with only 128mb of RAM and a sub-1Ghz Pentium II processor. Plus, the video drivers are screwed up in it, so I can't read the screen easily, so double booting it is out of the question. The bad thing is that I can't figure out how to download and install the more basic distributions as I am not geek enough to know how from what the sites have posted.