On the BestBuy site, the cheapest available is the TomTom One 3rd Edition, at $170, followed by the Magellan Maestro 3200, at $180.

My personal suggestion? Get the TomTom (or the Magellan, but I'm suggesting the TomTom from my personal experience). Try it out this weekend in Georgia. If you think you want a different unit, return it and get a different one. If you love it, then you saved yourself some money by falling in love with the less expensive unit.

BUT...make sure you triple check the return policy, in re: opened boxes and used devices.