I just made my 800mhz G4 iBook Sweeeeet! Here are my upgrades....Let me know what you all think about em! *100GB 5200rpm Hard Drive by Maxtor *DVD-R/RW Superdrive with DVD+R Dual Layer writing (UJ-845 model). *640MB Ram Now I can burn CD's,DVD's (both single & dual layer)...I love it!!! I installed everything myself and I have no installation experience..It was time consuming and a little tricky but kinda easy!