Might want to consider dropping the price if you want to sell it here. I refer you to this: VR 150 GB
. That's $100 and from a highly dependable vendor.
Also, it's not a SATA III model. It's a SATA 3.0 GBps model, a.k.a. SATA II. That means it's slower than the more common 500 GB platter 7200 RPM drives (Samsung Spinpiont F3 500 GB/1 TB, Seagate 7200.12 500 GB/1 TB, WD Caviar Black 1 TB SATA III), and all of those are cheaper for more space.
Good luck selling it.
EDIT: I'll edit this out if you want to try to catch a sucker. Just PM me.