This deal has ended.
Through 3/10, Buy.com has the 2TB Cavalry External Hard Drive (model CAXM3702T0) on sale for $144.99 after a $25 mail-in rebate, one of the better prices we've seen for two terabytes. Plus, budget shipping is free and there is no sales tax (except CA, MA, MD, NY, TN). This model has a 7200 rpm spindle speed and connects via USB or eSATA. New customers can use this $5 off $100 coupon.