NewEgg.com has the Lenovo IdeaCentre K230 Intel Core 2 Quad 2.33GHz Desktop PC, model no. 53594GU, for $449.99 (649.99 – 200 instant savings) with Free Shipping for a limited time. This IdeaCentre features an Intel Core 2 Quad Q8200 2.33GHz quad-core processor, 6GB RAM, 640GB Serial ATA hard drive, DVD burner, open PCIe x 16 card slot, Gigabit Ethernet, memory card reader, and Windows Vista Home Premium 64-bit. This system purchase is eligible for a FREE Windows 7 upgrade from Lenovo.