I cant decide if it would be better going with a 120gig 5400rpm hard drive for my powerbook, or the 100gig 7200rpm harddrive. Im not so much concerned with storage space as much as I am about battery life. Meaning which one is going to use more juice? Im assuming the 7200, but then I thought maybe with the higher capacity 5400 it would use more for all the searching of the platters. Im not sure. Any thoughts?
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