I can give you an answer on the Sat NAV. The one with the car hire is not very good. You are better off buying one. I paid £280 for mine in London, apparently it is cheaper in the states. The Tom tom 700 comes with a map of Europe. If you live in England you will have to buy the USA maps (or you can download from the internet). The Tom tom 300 or Tom-tom 500 or tom tom 700 is the best one. You can carry it from place to place. You can find the nearest restaurants, places of interest, parks, petrol stations, e.t.c Its just like carrying a Thompson Directory with you. The price for Tom-tom 300 has gone down a lot and it is one of the easiest Navigators around. Take it out of the box, switch it on and voila, you can go. No fiddling with wires or anything. This was my best investment for the whole of last year. We used it when we went to Los Angeles, and we couldn't believe it. You can pick any type of restaurants, shopping, parks, activities, etc. It is the best.