I didn't like the Seagate Barracuda AT ALL!
It got very hot indeed and I don't like the idea of a magnetic disk getting as hot as a CPU.
I'd go for the old faithful - Quantum Fireball range.
Make sure for SCSI-2 (Synchronous mode) that your total cable length is no more than 3 metres and that there is as few adaptors in this as possible (adaptors and connectors cause RF reflection).
Choose the expensive, fat, shielded SCSI cables and make sure the end of your chain has an ACTIVE terminator at the end (passive termination is the old SCSI-1 standard). The SCSI-IV and the Cyberstorm SCSI will have onboard active term for this end, you will need to match this at the other end. A lot of CD-ROM drives and hard disks offer this in a simple jumper. Term power is also essential.
