The S-750 is pretty near the pinnacle of hardware samplers. The S-760 which succeeded the 750 is similar, but it has no option for the hard drive (you have to use an external SCSI drive with it).
The display is big so you can do a lot with just the display on the 750.
Fairlight IIx (Mid-Life Crisis - cheaper than a Corvette!)
Roland JP-8, D-50, S-50, S-550(2x), S-760(2x), JX-3P, JD-800
EII, Emax II, Minimoog, ARP 2600, P-5 Rev.1 (broken...), Pro-One, Crumar Performer, K1m, K5m, MS-2000B, Virus KC, a few other things.