Hi AF,
Yes, the Amiga 2000 computer does indeed support a hard disk. My advice to you is to sell the GVP controller and buy yourself a Commodore A2091 SCSI Controller board. You can usually pick them up on eBay for around $10.00 to $15.00. Or if you personally like GVP then get a GVP 68030 or 68040 Combo board. If you do get an A2091 card, make sure that it has at least the 6.6 boot ROMs and at least a revision 04 Western Digital controller chip. Also make sure it has at least 512K of DRAM installed for faster disk access. The A2091 board autoconfigs, so the Amiga 2000 Series computer will recognize it immediately. It is truly "Plug 'N' Play". :-D