I've been using my iBook G4 for about a year and a half now, and it's been a great experience. I remembered using macs back in school, and I hated them. The OS's were crappy, they froze up, and were just not fun to work with. However, with OS X, that has completely changed. In my experiences, it is much more stable than Windows. For my purposes, I use the restart test, which to me is indicative of how many freeze up's etc etc have happened. With the Mac, it's probably been at the most 5 true freeze ups that I could not get out of. I love the command system, and features like Dashboard, Spotlight, and Expose are all icing on the cake. I won't be going back to a PC if I can't help it.
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