Office Depot has the Lenovo 3000 K100 Desktop Computer on sale for only $829 after $200 (expiring 12/15) and $100 mail-in rebates (expiring 12/31). This machine features a 2.4GHz Intel Core 2 Quad processor, 3GB memory, 500GB hard drive, CD / DVD burner, and comes installed with Windows Vista Home Premium. This model also includes an HD tuner allowing you to watch HDTV right on your computer. Monitor is sold separately. Shipping and in-store pickup are both free, and tax is charged in most states.