Screw the rumors of PCI bandwidth problems. There were some in the past, but they apply only to specific chipsets, and from what I understand, nForce2 does not have them. I own an nForce1 system, and the PCI bandwidth is cool. Besides, you'd never actually see any real world difference with a single drive, anyway.
Speaking of the price, hypermicro.com has the 73GB version for $698, and shipping is free for storagereview.com members.