I've got a 1.0GHz iBook G4 (40GB, Combo) that I use as a second computer and was wondering what some cheap upgrades would be to make. The obvious ones are HDD and optical, but I know superdrives usually go for about $100 and HDD are probably also fairly expensive for such an old machine. Oh and RAM, I'd like to get a 1GB stick, but am waiting for a deal to pop up somewhere. Is there anything else out there to make the iBook run a bit smoother/make it more friendly to work with? The only minor annoyances I have with the machine are the noisy keyboard (loudest keys ever!) and when the fan comes on/CD spins it's surprisingly loud. Any ideas would be welcome even if they're a bit of labor!