I am a little late in responding, but I would be glad to answer any questions you have about travel in the US. I would agree with most of the previous comments... More difficult than europe due to rural areas between larger cities. There are no where near as many hostals as in other areas of the world. Camping works, but can be difficult to finda camp ground; you could sack out anywhere but I'm not sure how well that would go over with the locals. Plenty of hotels though, and the worst start out at about $30 per night. Good hotels run from $50 to $80 in most areas of the country. In the hot spots you can count on much higher costs though. Busses are going to be the cheapest way to go cross country except for hitching which isn't for everybody. I have hitched from Kansas to Oregon and had a great time; good people and made fast time for the cost of a few meals and helping with gas. This isn't a requirement, but is good manners. There are good sites devoted to sharing space for travellers; crashing on couches and such. Shoot me a message if I can answer any questions.
Later
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