PCNation.com offers the Garmin Nuvi 750 GPS Portable Travel Assistant, model no. 010-00657-20, for $397.15 with free shipping. That's a $53 drop since our last mention and the lowest total price we've seen. Features include a 4.3" touch-screen LCD, preloaded City Navigator NT street maps with a large points of interest (POIs) database, FM transmitter, Secure Digital card slot, MP3/audio book playback, up to five hours of battery life, USB connectivity, and more.
Amazon also has it for 398.92 with free shipping.