Today's DealNN deals include a variety of GPS units, external hard drives, digital camcorders and more. First up is the Magellan Maestro 3200 GPS unit. It is regularly priced at $149.99, but for this week only it is reduced to $94.99. Features include a 3.5-inch color touchscreen display, turn-by-turn voice guidance and SmartDetour that automatically navigates out out traffic jams or stopped fr
