So far I am very encouraged by your responses. A cross country trip would be fabulous and a once in a lifetime trip for all. I'd like to avoid straight interstate driving, but considering a northern port of arrival (Boston) there would be some great sight seeing, mountain driving, Niagara falls, great lakes, badlands, Yellowstone, rocky mountains, California.. incredible stuff! All or most on roads less traveled and some on interstate, in order to make some good time in the boring sections. For anyone that has not been stateside and driven cross country: this land is absolutely enormous! Talking about "made to be driven", are you ready for some 7000 miles?
Gus