Hey All- I'm considering upgrading my PowerBook G4 12". Just wondering how much you all think it's worth. It's a Revision B model @ 1GHz, it has 512mb RAM and SuperDrive. The Battery is brand new as I just replaced it last month. It also has the extended AppleCare Warantee still in effect. It is in pristine condition, no scratches at all. The only marks are a little wear on the latch release and below the keyboard from skin oils. I would like to purchase the new 15" PowerBook for the higher resolution for doing some of my coding and having windows open simultaneously. Thanks!