ususally, you can't simply connect drives together and transfer data directly between 'em. You should, however, have no problem connecting both to your computer via usb/firewire. Once this is done, assuming you're running win2k or winxp (or a mac os), the drives should automatically be recognized by the computer and should be accessible like any other drive -- you can then copy/cut/past files/directories just as you would with any other drive.