In a previous article, Charles Talleyrand said:
Does anyone know of any reasonable cost GPSs suitable for both street
and aviation use. I'd like to have turn-by-turn directions and be
able to look up com frequencies.

There's no such thing as a "reasonable cost" aviation GPS.

That said, I'm pretty happy with my 296, both in the air and on the
ground. I have the optional car kit that gives you a charger cord with a
speaker for spoken turn-by-turn directions, a CD with detail maps, and a
bean-bag mount so that I can throw it on the dash of a rental car after I
arrive at the destination airport.

--
Paul Tomblin http://blog.xcski.com/
Flying is not dangerous; crashing is dangerous.