Hi, I recently got my old G4 iBook [12"] back from my father as I upgraded him to MacBook. It is a 1.33Ghz model with 1.5Gb of RAM installed. Anyway, been using the little white wonder and think it is well worth trying to upgrade and keep to use as a handy 2nd machine for web browsing etc. My question: I would like to upgrade the internal HDD drive [I know it is not to be under estimated - i'm fine with the screws, case etc] and at the same time do a new install of Leopard 10.5 on this hard drive. I have no need to migrate any data or software from the existing Tiger install on the current HDD. 1. Is this possible or recommended i.e. simultaneously. 2. How do I make the iBook boot when I put the new clean HDD in the machine and install from the leopard CD/DVD? 3. Any recommendations for a compatible fast HDD - not too bothered by noise [the current one is very noisy anyway]. Many thanks to you for any help.