Amazon has the Western Digital Caviar Green WD7500AACS 750 GB Bulk/OEM 3.5 Inch, 16 MB Cache, 7200 RPM SATA II Hard Drive for $54.61 with free shipping.
Technical Details:
* Brand Name: Western Digital
* Model: WD7500AACS
* Hard Disk Size: 750 GB
* Hardware Platform: PC
* Hard Disk Description: Internal hard drive
* Form Factor: 3.5" x 1/3H
* Hard Disk Interface: Serial ATA
* Hard Disk Rotational Speed: 7200
* Buffer Size: 16 MB
* Width: 4 inches
* Depth: 5.8 inches
* Height: 1 inches
* Weight: 1.6 pounds
Amazon.com: Western Digital Caviar Green 750 GB Bulk/OEM Hard Drive 3.5 Inch, 16 MB Cache, 7200 RPM SATA II WD7500AACS: Electronics
(Expired) Western Digital Caviar Green 750GB 16MB Cache 7200RPM Hard Drive $55 + FS 
