The recently discontinued Garmin 760
http://www.tigergps.com/garminnuvi760.html is feature rich. A couple of friends have them, one for two or three years and the other two months. Friend #2 and his wife immediately made a 50-mile trip followed by a 500-mile trip. They are not gps experts, but they love their new unit.
They ordered the Garmin 760 from Wal Mart on line and had it shipped free to the nearest Wal Mart store. I believe Wal Mart has the lowest price.
http://www.walmart.com/Garmin-nuvi-760-Bluetooth-GPS/ip/7958704The 760 is a better unit then the one I have. My unit does great. I plug in an address and it takes me there. The problem is that it does not always take the route I want to take. A while back I was taking a couple hundred mile trip and my unit selected the most direct route. Mileage was shorter and the time frame in theory is shorter. I did not like the route because it put me on a dangerous river road with a high accident rate. I got by when I selected a City on the safer route and first navigated to it. Once I was near there I had my wife selected the address I had programmed into favorites for are final stop. An automotive gps that allows the user to create a pre-planned route at the start of a trip is better. The 760 allows the user to create ten routes.
I recommend the 760 because it is a full feature gps being sold at a discount price. You can spend twice the amount of money on a current model that has fewer features.
Tom Tom and Magellan make good units. I like the Magellan manuals.
I happen to like the Bluetooth feature because I can use the speakers in my gps with my cellphone as a hands free device. Tickets for using a cellphone while driving, along with court cost adds up to more than $200 in California.