scsi is practically dead. sas is the high-end/enterprise drive interface and sata is mainstream. both have 15K drives which match or outperform scsi and either cost the same or a bit less.
what hp pc do you have? some have intel matrix raid built-in. even if you've got a bunch of scsi drives you want to reuse, they will not outperform a $150 kit of 3 500gb seagate barracudas in raid 5.
I need some help! I'm looking to buy a SCSI Controller for my HP computer. I'm having problems finding one that is compatible with windows 7 64bit operating system, any suggestions would help. I have have both PCI and PCI express slots open.