Ok, please dont take offene to my lambasting to your question, but I've always been amazed when people say they are going to some beautiful section of the country and leave their high-end gear at home and bring along a measely ol' P&S????
Get yourself a nice photo backpack, like the one I reviewed in the accessories section and bring all your gear. I dont care if I was headed into a war zone, I'd have my good cameras with me along for the ride.
I'm thinking you'll be heading into some beautiful places, or you probably wouldnt be going their with hard earned money, I mean who takes a vacation into Detroit or Compton, so bring along gear that is going to record it in the best way possible.
This reply is basically aimed towards everyone who wonders whether they should bring their photo gear along on a vacation. NEVER LEAVE HOME WITHOUT IT!!! That's why you own it right!
As for suggestions on where to shoot and what to see, I've never been personally, but I cant wait to see your pictures when you return.