I simply CAN'T agree with the rest of you on this. I am the sole Mac Administrator in a shop with about 30 of them, only four of which are in daily use. The level of time and effort I have to put into resolving a problem with OS X nearly always dwarfs the level of time and effort required to resolve a comparable problem on Windows XP. Apple has a habit of breaking things with OS X updates, like NIS authentication, command line scripts, and users' applications. NIS authentication has been broken since 10.4.6. While I'm sure your experience varies, I've yet to sit down with a Mac for more than an hour and not found a bug. In March, I reported an average of 1 bug or crash to Apple per day, most of which they hadn't seen before. Then there's the hardware. Three of the four G5s we bought were dead out of the box. One of the two Intel iMacs in our QA Lab is probably defective given how unstable it is. I was a HUGE Mac fan as recently as 1997, but no more. OS X pretty much killed any desire I have to own or use a Mac. I'll take Linux, XP, or Vista any day over the Mac.