This deal has ended.
Dell Small Business has the Dell Vostro 400 Mini Tower for only $699 after $340 in instant savings. This features two 19" LCD monitors, 2.2GHz Intel dual-core processor, 2GB memory, 250GB hard drive, 16x CD / DVD burner and Windows XP or Vista Home Basic (I recommend XP, Vista isn't perfected yet). Upgrades are available for most components (just scroll across the icons at the middle of the landing page). Shipping is free and sales tax is charged in most states.