Hitachi Deskstar 0S03230 3TB Internal Hard Drive for $129.99 shipped after promo code EMCKFKE35. Here is a screenshot for reference. It features 5400RPM spinning speed, 32MB Cache and 6Gb/s SATA interface. Note that it comes in OEM packaging, which means no pretty retail box but is otherwise identical. Most places have this internal drive for over $145.