I live in the United Kingdon and i am planning on going to houston to visit some relatives and then driving to Vegas (then back to houston of course). Although I have driven in the USA before i have never driven this many miles! We plan on doing it in two cars (an SUV and a two seater sports car) there will be five adults including 4 drivers. I want to stop over to the see the grand canyon on the way back as well.
I will be doing the road trip between the 3rd of March to the 11th of March 2009. Any help would be most appreciated as i have never done this sort of thing before!