Newegg offers the refurbished Acer Celeron Quad 2GHz Desktop, model no. DT.SUVAA.002, for $219.99. This $40 mail-in rebate cuts it to $179.99. With free shipping, that's the lowest total price we could find for a refurb by $69, although we saw a refurb for $30 less last month. It features an Intel Celeron J1900 2GHz Bay Trail quad-core processor, 4GB RAM, 1TB hard drive, DVD burner, and Windows 8 64-bit. Rebate expires August 31.

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