I'm soon going to end up with a few 15k and 18k server drives in the next week or so.
As I understand it these things can make for very nice OS or game drives, but most mobos dont have ports for them, can anyone advice me what kit I need so that I can setup a RAID0 for them? recomendations for make/model would be great along with a UK retailer if posible.
As far as I know, the only speeds above 7200 that are offered are 15k and 10k. The best interface right now to get would probably be serial attached scsi (SAS). SCSI is out of date, and fiber channel is more expensive for a controller.
As cjl says, 15k seems to be the highest available disk speed (and those will be SCSI one). Be aware that 15k disks are designed for use in servers that have very good cooling (and normally reside in an airconditioned server room). They may not be suitable for use in a workstation without additional cooling.
If the disks are no longer needed I would suspect that they're going to be relatively small ones. When you add in the cost of buying a suitable RAID card you'd almost certainly be better off buying some (cheap as anything) modern SATA drives instead.