Blinq via Buy.com offers the refurbished Gateway DX4850-57 Intel Core i7 3.4GHz Desktop PC
(no monitor), model no. PT.GBL02.022, for $579.99
for shipping. That's $45 under our September mention of a new unit and the lowest total price we've seen for this model. It features an Intel Core i7-2600 3.4GHz Sandy Bridge quad-core processor, 8GB RAM, 1.5TB hard drive, DVD burner, NVIDIA GeForce GT 420 1GB video card, Gigabit Ethernet, 802.11n wireless, memory card reader, and Windows 7 Home Premium 64-bit.
Note: No warranty information is provided.