I have a Garmin Nuvi 760. It does talk, but you can turn the volume down. One of its most useful attributes is the traffic receiver. That system has routed me around a lot of bad traffic in LA using roads I'd have never considered using, but that turned out to be faster and shorter than the route I chose. It hooks up to a PC via USB port and comes with software so you can preplan trips, mark waypoints easily and then download them into the GPS and vice versa.