I picked up an Intel Mac Mini 1.6GHZ duo core, 250GB 5400 SATA1 hard drive, 2GB RAM running OS 10.5.7. My wife has a MDD G4 dual 1.25GHZ, 300GB 7200RPM PATA/100 hard drive, 2GB RAM running 10.4.11 which she does some video work on sometimes. Is the Mini going to smoke the MDD G4 overwhelmingly in iMovie? Primelabs Geekbench puts the MDD at 1051 and the Mini at 2138, but how much do the other factors besides processor and memory close the gap between the two? And what about the heat factor and wear and tear on the machines doing video?