I got an Apple PowerBook G4 in August 2002. I've loved Mac OS X ever since. Easy to use on the outside, Unix-ish on the inside, and I get to run my favorite Linux software (Gabber 2, of course).
Mac OS X: A Guide for Former Linux Users is a guide I'm working on which explains how Linux users can become more at home with Mac OS X, as well as pointing out minor features and cool applications which I've discovered. You don't necessarily need to have been a Linux user to benefit. 11 November 2002
iChat Thought Bubbles, as mentioned before, is an article I wrote for Jabber developers detailing some of the better points of iChat 1.0's interface. 18 September 2002