I know that Maxtor DiamondMax drives default to "quiet" mode, and that you can download a utility to change it to "fast" mode or turn off acoustic management, but my question is, is the difference in performance *noticeable*? I'm not talking about benchmarks here (I've seen all of those), but everyday usage, like booting up, loading programs, copying files, etc, is there an actual difference in speed? What about noise levels... is it a perceptible increase if going from quiet mode?