Carphonewarehouse.com has this TOM TOM Go 500 for £269.99 inc Free delivery.
This in itself is a good price for TOM TOM G0 500, however, by going through QUIDCO, you get around £25 cashback and the price drops to around £245 delivered. (Excellent price!!!)
This is a BLUETOOTH enabled device and allows hands-free calling with Bluetooth mobile phones.
Features: Postcode navigation for simple and accurate selection of your destination (UK & NL only), an Integrated GPS antenna, assisted Satellite Navigation that allows continuous navigation, even in tunnels, simple touch-screen operation, clear and accurate turn-by-turn instructions in over 30 languages, tap the GO screen to accept a call or to make 1 and talk through the GO while you drive, phone control support, directly call a point of interest through the GO, and finally Itinerary planning: plan your trip by defining multiple waypoints and destinations.