3 months in USA!!

[mrhind]

Me and my wife are planning to travel USA next April (2007) for around 3 months before moving on to OZ for a year's work/travel. We are trying to decide how to plan our trip so we can make the most of our 3 months. There are so many places to see and ways to travel, how do you decide? Some articles say it is better to see the country by coach, some say by car? We both fancy the idea of seeing the country by car but are concerned that it will cost alot.

We have a certain number of places we want to see such as major cities, Grand Canyon, Memphis and many more.........We are keen to travel the East Coastal Highway then maybe Route 66 from Chicago to LA.

Has anyone got any advice on how we can make the most of our 3 months? Also, what is the best way to see the country i.e car/coach and how much would it cost roughly?

Any help would be very much appreciated as we are both unsure on how to plan the trip?