Lenovo offers its Lenovo IdeaCentre K450e Intel Haswell Core i7 3.6GHz Desktop PC (no monitor), model no. 57328803, for $849. Coupon code "USPK54E0373" cuts it to $819. With free shipping, that's tied with last week's mention and $280 under the lowest total price we could find for a similar configuration with less memory elsewhere. Features include an Intel Core i7-4790 3.6GHz quad-core processor, 16GB RAM, 2TB 7200 rpm hard drive, DVD burner, 802.11n wireless, and Windows 8 64-bit.

Update: The price has dropped to $819; however, the above coupon no longer applies.