I have a question about upgrading the mini's hard drive. I currently have a G4 1.42 GHz Mac Mini with 1GB Ram and an 80 GB 4200 rpm hard drive. I have have an external 160 GB 7200 rpm hard drive connected via the firewire 400 connection. I was thinking of upgrading the internal hard drive to 160 GB 5400 rpm. Would that make a difference in performance over the 4200 rpm drive? I could also make the external firewire drive bootable and use that. What do you think would give me the most performance gain, upgrading the internal drive or making the external drive bootable? Thanks.