Wow! Great tips, thanks AZBuck :) and thanks for the car rental tips! All these things I'm leaning is great!
In terms of routes I was kind of hoping we could do a bit of inland and s bit of coastal? I like the whole mountains, lakes and trees thing while Jo loves the beaches and sea :) guess we're going to have to start learning how to compromise!;)
We love our good food and good beer (Ale) so would love to stop in places where they like it just as much as we do!
Ideally we want to relax, see some awe inspiring scenery, eat great food and take it easy. We're not keen on rushing nor are we party/clubbing people.
What would suggest for a mix of two routes?
In answer to your question regarding Philadelphia/ Washington etc. Nothing major is jumping out at me. I guess we're more interested in seeing some different scenery to the UK.