Pass on the PB150. It has the worst screen of any 68k Powerbook and when they fail they have dead yellow blocks on the screen. New replacement screens are not easy to find and expensive when you do find one. The last one I saw for sale on ebay was a year ago and was sold BIN for $75. Junk PB150's are cheap, but there's no guarantee you'll get a good screen and you could end up buying several before you get one. They are also not very expandable because they lack most of the ports of other similar PB's. Any other member of the PB1xx line would be a much better value.