Mac mini Model A1283 Terabyte Drive Replacement
Quote from kyle:
It's a notebook hard drive, and the largest drives currently available are 500 GB. Eventually they'll make notebook drives with that much capacity.
Sorry, but WD is shipping 750GB and 1TB 2.5" drives now. And I think Toshiba has a 640GB 2.5" drive as well (19SEP09)