Hello all! So i've finally decided on a refurb MBP 'classic'. 15 inch, 2.6ghz, glossy. BUT, i wanted to know if i should get one with the 5400rpm or 7200rpm hard drive. The size of both isn't the issue. I just wanna know if I really will be missing out on much. I could use the extra money for my external firewire scratch disk for media (as there's a $300 price difference). With that said, would the hard drive speed make a big difference when simply running day to day and pro software? Also, what about using audio software (ie Ableton Live) and having it running several tracks, plugins, virtual instruments, etc... all at once? (if i'm on the go, i'd prolly just use the internal HD rather than the external, but that would be rare). Sorry if its a dumb question. I guess I may be confusing hard drive speed with processor and RAM for running programs (?) Thanks!