I'm upgrading my photo storage and getting rid of a couple desktop drives. Please speak up if you want one otherwise my Dad will buy them. I've had the 250 longer, so I estimate 200 hours running. The 500 probably has 50 or so hours. Shipping is free.
$20 for a
WD Caviar 250GB (WD2500JS-75NCB3) Manufactured 09 Feb 2007. 7200 RPM, 8MB cache, SATA 3.0GB/s.
$30 for a
Seagate Barracuda 7200.10 500GB (ST3500630AS) Manufactured early August 2008. 7200 RPM, 16MB cache, SATA 3.0GB/s.