This deal has ended.
Buy.com has the Nextar Q4 Automobile Navigator for only $79.99. This features a 3.5" LCD touchscreen and voice-prompted navigation. It also comes with maps of the 50 US states, with 1.6 million points of interest (gas stations, hotel, ATMs), MP3 player, and more. Shipping is free and there is no tax (except CA, MA, MD, TN).