One of these days I'd like to get myself a 1.5 or 1.67 GHz PowerBook G4 as an example of the last and fastest of the PPC PowerBooks. Not in the budget now though.
What screen size did you get? I'm not sure which I want, I kind of think a 17" since I think it's too big for a daily carry-around 'Book, but I still want one. Keep in mind my current machine is a 13" MBP, and the last was a 12" PB G4... Kind of want the next MBP to be a 15".
Nice that it has a new battery so you can actually use it without being tethered to the wall too!
My only recommendation based on my 12" 867 Mhz PowerBook G4 is to be careful with the computer end of the power adapter. I always ended up buying at least one per year due to the ring separating. I swear I was trying t be gentle not yanking on them and unplugging it during travel as I do with all laptops... I'd get the MacAlly ones since they were half or less than the Apple ones after killing a few of those first. They didn't have the sweet charging light though. I'm so grateful for my MagSafe charger now!