Got this deal from Fatwallet.com:
http://www.staples.com/catalog/search/S ... rds=471535
Original price = $99.94
Add something cheap like a Sharpie marker ( http://www.staples.com/Catalog/Browse/S ... U=SAN30007 ) to bring the price above $100 then use this coupon code to receive $30 off $100: 61884.
Total online price = $70
Minus $20 mail-in rebate = $50
NOTE: I, and others, had a very hard time adding the hard drive to the shopping cart. It requires you to sign up for an account (unless you already have one) and click the "Add" button many many times, so be prepared! You can order this over the phone by calling 1-800-3STAPLE, but I don't know if the rebate will qualify because it says explicitly for Staples.com only. Even without the rebate, $70 is a GREAT price for an 80GB 7200RPM hard drive!