I can also recommend flying in USA - I had a holiday over in SoCal & Navada land a few years ago - great fun!
Also, if you go to the right FBOs they will often lend you a car for free (just top up the fuel) to check out the local area on the ground for a few hours! When I went to Palm Springs, they had 2 cars just for that purpose. Anyone heard of that in the UK? ...
I'm currently starting to plan a trip down to Cote d'Azur - so I've got another learning process to go though
Have fun in the US
D&O