We are not RV Camper experts. Our sections on trip planning and cooking have many tips that begining RV'ers or someone renting an RV can use. We are also providing you with some links that based our knowledge of RVing which is based on camping with our parents who have owned two different RV's.
Want to try and RV on for size try renting. Here is a large national rental agency. There are also many RV dealers that rent RV's. Keep in mind if you are renting an RV that it does not ensure a simple problem free vacation make sure you get a COMPLETE intrduction to your RV. These are large specialized machines it is not a family mini-van.
This site is mostly geared for western US campers but has plenty of nationwide informations an lists.
If your in a new area and looking for a safe place to land KOA's are usually a pretty good bet.
Not to leave out one of our favorite groups the Habitat Care-A-Vanners. We worked with some of these folks in the mid-90's in Floridia after Hurricane Andrew. I now aspire to retire and become one.
This is an industry site with quite a bit of good basic information