TigerDirect.com offers the factory-refurbished Gateway FX6800-01E Intel Core i7 2.66GHz Desktop PC, model no. PT.G410X.001, for $649.97 with free shipping. That's $50 under our October mention and the lowest total price we've seen. Features include an Intel Core i7 920 2.66GHz quad-core processor, 3GB tri-channel RAM, 750GB Serial ATA hard drive, dual layer DVD burner with LabelFlash, ATI Radeon HD 4850 1GB video card, Gigabit Ethernet, flash card reader, and Windows Vista Home Premium 64-bit. A 90-day Gateway warranty applies.