I'd have sprung for a 10,000 rpm WD Raptor SATA drive. More expensive, but they are large enough now to hold OS + VMs + main data, then you can have less frequently used data on the cheaper SATA RAID drives. Still amazing what you can buy for the price nowadays.
I thought about that too. They stayed out because two of those guys mirrored would have broken the $1,000. But yea, it's definitely good return on the money. If you've got a couple hundred more, I'd go for it.
