K.C.
We have camped in several state parks (we are in the Adventure Guides program thru the YMCA - you may want to check into it b/c they do a lot of the work researching sites and all...) Anyway, our very favorite place is Inks Lake - about a 3 1/2 - 4 hour drive from Houston but very much worth it. Rusk / Palestine was quite nice too. For an "RV" park, we stayed at the Admirality last year for Spring Break and again in August - it's right across the street from SeaWorld San Antonio and they provide a shuttle bus over there. They have a pool as well. For a little bit longer trip, we went to RockPort and stayed in an RV park (can't remember the name - sorry) and it was nice b/c they had a pool and a kids room. Good luck and have fun!