Aloha from Hawaii,

Some friends and I ranging in age from 31 - 35 are in the process of planning an RV Road Trip from 5/28 - 6/8/09. I have never done this trip before so I'm looking for some suggestions, helpful hints and some hot spots. We plan on flying into Seattle and start off the next morning though Oregon, pass through the Southern Coast of Cali, through Arizona and end in Vegas, baby! Do you predict that 12 days would be a sufficient amount of time to allow for this trip? We'd like to do some white water rafting, some of the amusement parks such as Six Flags, Great America and/ or Knotts.

I'd appreciate any help in planning for this trip and even some sites I can go to to get some help...

Mahalo (Thank You)
Kawehe