This deal has ended.
Today only, Buy.com has the Vox 250GB External Hard Drive on sale for $59.99 after two $20 mail-in rebates (here and here). Pay via a new Google Checkout account, and you will get an extra $10 off. Plus, delivery is free and there is no sales tax (except CA, MA, MD, TN). This drive is compatible with either PC or Mac and normally priced around $100.