HP Pavilion p7-1439 Desktop PC for $499.99 shipped.  Here is a screenshot for your reference.  It has the newly released AMD Trinity quad-core A10-5700 CPU at 3.4GHz, 8GB DDR3 RAM, 1.5TB 7200RPM hard drive, AMD Radeon HD 6410D graphics, dual layer DVD burner, Gigabit Ethernet, wireless 802.11b/g/n, Bluetooth 4.0, and Windows 8.