I have a pair of 73GB 15kRPM SAS hard drives that came out of a Dell workstation. Please note these are SAS not SATA. In a RAID0 they are amazing. They are Seagate ST373455SS. They came in a Dell P490 workstation that was refurbished from Dell and the client's specs didn't call for these so I'm selling them. You can buy the SAS RAID card (like a Dell Perc i5) for less than $50. This will give you the option to run 4 of these if you wanted to. Asking $25 each or $40 for the pair. (shipped)