Newegg offers the refurbished HP DC5800 Intel Core 2 Duo 2.8GHz Desktop PC (no monitor) for $149.99. This $40 mail-in rebate drops it to $109.99. With free shipping, that's tied with our mention from two weeks ago and $79 under the lowest total price we could find for a refurb model with a smaller hard drive. Features include an Intel Core 2 Duo E7400 2.8GHz dual-core processor, 4GB RAM, 1TB hard drive, DVD-ROM, keyboard, mouse, and Windows 7 Professional. Rebate expires December 31.

A 90-day warranty applies, although it's unclear who backs it.