Apparently Western Digital has a customer loyalty program that gives pretty nice discounts (from SD):
What drives do they have?
– They have over 30 different models available. the popular ones in this thread are the 400GB SATA, 320GB SATA, and the 36GB Raptor.WD3200JD SATA 150 MB/s 7200rpm 320gig 8.9 ms 8 MB cache $89
WD2500JD SATA 150 MB/s 7200 250 8.9 ms 8 MB $65
WD3200JB EIDE 100 MB/s 7200 320 8.9 ms 8 MB $97
WD2500JB EIDE 100 MB/s 7200 250 8.9 ms 8 MB $65
WD4000KD SATA 150 MB/s 7200 400 8.9 ms 16 MB $143
WD2500SB EIDE 100 MB/s 7200 250 8.9 ms 8 MB $77
WD360GD SATA 1.5 Gb/s 10,000 36 4.5 ms 8 MB $82
I have yet to find the entire list yet, but from what is shown, these are pretty good prices. The price includes shipping and other fees. These drives are brand new and come with 3 year warrant (5 if you order the Raptors). The only ceveat is the drive you use (serial number) to get this drive upgrade will have its warranty voided. However, drives with expired warranty apparently still work. You can order as many drives as you want, but each drive you order requries a unique serial number.
How can I upgrade or trade up my WD drive to a larger drive?
Western Digital has a WD Customer Loyalty Program that allows you to upgrade your current WD drive to a larger drive. Under the WD Customer Loyalty Program, you can purchase a new drive with the full manufacturer warranty at a discount price. Pricing and availability are subject to change.
If you are interested in the WD Customer Loyalty Program, please contact us at 1-800-275-4932. Please select Option # 4 in the phone menu to reach the WD Customer Loyalty department.
Enjoy!