> A negative is that on the 1GHz model, Apple don't offer the HD upgrade > to 5400rpm which I got with the 667 so some of the speed ehancement is > lost in read/write actions. Has anyone found a third party 5400rpm drive > to fit in this model? TIA. Any 2.5 inch 5400rpm drive, such as the IBM Travelstar drives, will do fine... I heard that Apple argues for the lower speed drives as consuming less power and having similar performance due to the higher disk densities. In my previous PB G4 I was using an IBM Travelstar 40GB 40GNX drive that was very quiet and fast... they have higher service and performance ratings than the similar 5400rpm 40GH drives. The 40GNX drives top at 40GB, while the 40GH drives top at 60GB. -- Denis