Go to Crucial. www.crucial.com Stay away from cheap places; they tend to sell no-name chips that are prone to fail. The cheapest of all (usually coast to coast, aka 18004MEMORY) is certainly the worst of all. It's very easy to install; pop the keyboard off, remove the memory cover with a tiny phillips on the iBook (not necessary for the TiBook), insert the RAM at a 30 degree angle, press it down flat, close the computer again. Chris Malanga <chrismalanga at fastmail.fm> writes: > Since I have some money burning a hole in my pocket, and it looks like > PowerBook G5s won't be around for awhile, I have decided to invest some > money to max out the memory in my TiBook 550 and iBook G3/600. > > Just wondering where people get their RAM from? Any success stories? > Anyone I should stay away from? > > Also, is it difficult to install memory in the TiBook or iBook? Would > it be worth the drive to an Apple store to have it done?