Brevard County (Melbourne) maintains three really nice RV/Camping Parks. We have visited Long Point and are going to Manatee Hammock this weekend. The parks are clean and well patroled. No noise after 10PM - Couple of restaurants and stores are close by - facilites are great and either you are on the water or less than 100 ft. from the water.
www.campingspacecoast.com 321.952.4532 for reservations. Long Point is at 700 Long Point Rd., Melbourne, Fl 32951 321.952.4532 and Manatee Hammock is at 7275 S. U.S. Highway 1, Titusville, Fl 32780 321.264.5083. My April rent is $33.30 a night. They are easy to find on Google Earth.