newegg offers the ASUS AMD FX 8-Core 3.1GHz Desktop PC
(no monitor), model no. CM1831-US-3AB, for $549.99. This $30 mail-in rebate
drops it to $519.99
. With free shipping
, that's the lowest total price we could find by $253. It features an AMD FX-8120 8-core processor, 8GB RAM, 1TB 7200 rpm hard drive, DVD burner, memory card reader, 802.11n wireless, Gigabit Ethernet, and Windows Home Premium 64-bit. Rebate expires August 31.