I have a Garmin Nuvi 1450. At times I'd like to find the mileage to a town. As far as I can tell to do this I need to enter the town and a street. I've no idea of what street names are. So I guess at one. Is there a way to just enter in a town and get that info? Also, my Nuvi has been a real help but is a bit old. Would it be worthwhile to get a newer one? Which one? What would be the advantage? Thanks for any info!