I wish to rent an RV next Summer for 3 weeks. This is our first RV trip so I am the ultimate newbie. My wife and I are taking our 7 and 10 year old and we wish to go visit some national parks out West (Grand Canyon etc.). We would rather have more space than less as well as convenience. We live in New Jersey if that makes a difference re. the questions below. Whom should we rent from? Should we fly out and rent out West? Any good sites with advice (besides this one!) for renters? Anything else we should know? Thanks.