Dalco Electronics
  275 Pioneer Boulevard
  Springboro  OH  45066
  (800) 445-5342
  (513) 743-8042
  (513) 743-9251 Fax
  (513) 743-2244 BBS

  Extremely large selection of connectors, cables (including the relatively
  rare SCSI-2 and 2.5-inch IDE hard disk varieties), and pretty much everything
  in the way of computer assemblies. Oriented towards computer end-users.
  They will custom-build cables. Service is good, prices are excellent, and
  their catalog is filled with basically neat stuff.