Seagate FreeAgent GoFlex Desk 1.5 TB USB 2.0 Ext. Hard Drive for $69.99 + free shipping for $69.99 + free shipping
Free shipping with Prime.
Drive has interchangeable connectivity (not included) so you can upgrade to USB 3.0, Firewire, or eSATA.
I posted the same drive a few days ago. I went to buy another and the price dropped again.