Very cheap UK mapping sat nav with 3.5" screen from the bargain basement of morgan computers. Listed as grade A open box stock. Delivery charge is a bit of a killer at £8.81 but at a total of £55.80 this is still very cheap. Quidco only 2% but better in your pocket than their's!
Navman F20 GPS Sat Nav System @ Morgan Computers £46.99 (£55.80 Delivered)