I have a Garmin GPS. I really like it. I can now blame any and EVERY tardiness on the talking girl inside of it. Spend around $140 (catch a sale Radio Shack,Best Buy etc) and MAKE SURE you get one with "Lifetime Updates".
As far as "Chinese food".......
Mine’s an old Tom Tom that cost $79 in the last century and has served well. The three major brands are Garmin, Magellan, and TomTom, I think. Seems like Garmin comes up most.