My sister wants to get a newer iBook and has the older style ones sitting doing nothing. She hasn't touched it in forever so I offered to take it offer her hands so I have something simple I can tote around or go online away from home. I wonder how upgradable these were. I figure I can get pretty much what I need off eBay for RAM & HD needs. But how large of a HD can these support & what was the max RAM they could take? I think it's the 233mhz model w/a base of 128mb RAM and 4gb HD. I can add an Airport card to that right? Last I remember I put in a 512 for her and it runs OSX (the original!) fairly well.