Would like to plan one trip with DH and DDs 6 & 10 for December of 2010 that would include a few days with my mother and father-in-law that are FL residents. Probably would stay at ASMo or PC. I would like to return in April of 2011 with my parents in their RV with my DH and DDs. Looking for best ticket options for saving money. Also believe that DH and DD might still stay in a hotel for the April trip. Suggestions please!