Thanks guys - frankly, if they offered the 4000 with that screen, I would just forgo the Nav. A case of "you don't know what you're missing" given that I have never had a Nav in my car.
I drive at least an hour a day during the week and more on weekends, but more importantly, I really enjoy driving and have wanted a better HU in my car since I bought it (9 years ago)! So there is a real sense of wanting to go for the gusto. I do wish I had a better sense of the timing of the map/ real-time traffic updates.
Ha, drenyce311 -- I moved to the Southwest after 30 yrs in NYC just a couple