It's my first brand-new Mac. I have a secondhand TiBook 867 that's served me very well, but it's just not small enough, and love it though I do, nobody would ever claim that TiBooks are durable. I had my heart set on a PowerBook, but just couldn't rationalize the $450 premium in the face of my current financial state. Besides, I'm running a system that's nearly equivilant to a Rev C 12" PowerBook. I have to say, the files-and-settings-transfer-over-firewire routine works incredibly well. Took about a half hour, maybe forty-five minutes to transfer over 30gb, and when I finished the setup process I was booted into the same desktop I had on my TiBook, from my Safari history to my Dock settings and everything else. Later this week I'll get my STM Small Loop backpack, and then I'll have a truly mobility-optimized setup.