If you are looking for something with a bit of a challenge, then the itinerary just above sounds pretty good. I haven't done it yet but I know many who have and if the weather is nice there is nothing like it. The Pemi loop is very good too. I've done most of it myself and it would be a good way to not have to deal with shuttles. Speaking of shuttles, the Prezie run could be ended at Crawford and I believe the AMC runs shuttles from there to Pinkham for the car, but that should be looked into. Back to the Pemi though, it has Franky ridge, Garfield, the Twins, the Bonds, heck, most of the good stuff you can do in the Whites, really. A number of 4k footers could be hit up and it could be done to taste so that it's not too strenuous. Hmmm, I may have to do the loop myself!