Nice! That's in great condition. I always liked the appearance of the iBooks.
I'm curious what you think of the performance after using it for a while. A decade ago I picked up a G4 iBook (don't remember the speed) but it was much slower than my G4 iMac 17" and 2005 Mini. After a year of not using it I passed it along to someone else, but I've considered getting another one since then...