Why would anyone want a hard drive? USB drives are so much more versatile, lighter, easier to transfer data. I don't see a noticeable decrease in speed.
Unless you are loading LOTS of WAV files, I can't see a reason for a hard drive. I have many pages of text files, styles and midi files, and have barely touched the capacity of a 2-gig drive. I keep a 4-gig for WAV recording only. I slip this card out of the kb and into the PC, listen and delete most of them, and sometimes store the good ones for later use.
DonM