Is the 750GB hard drive loud?
I need a very quiet computer, so I'm hoping someone with an iMac with this drive can comment on its idle and seek volume. If it makes a racket in the iMac I'll stick with the 500GB drive and hope it's closer to silent.
As the Intel Macs are sealed I suspect the manual just advises you to seek out an Apple service centre if you wish to upgrade at a later date.
If I were in your situation I'd probably go for the 500Gb internal and a FW800 1 or 1.5Tb external drive.
mrtotes
Is the 750GB hard drive loud?