no but I need an upgrade from the 320 I have now. and I have a 320 external one and both are about full and deleted whatever I don't need already.
I've seen 1tb desktop hard drives going for the same price a 640 laptop one
if you have a decent budget and are connected to a network at most times, you can try setting up your own FTP server at home. That way you can access anything wherever you are. It would also be a lot cheaper than the $10k HD and would be easily upgradable and would offer a backup if you set it up with dual RAID drives.