Don't miss the World War II Museum in New Orleans. We also liked Mulate's Restaurant. Live music and great cajun food!
Not sure about New Year's Eve downtown. I don't think I would do that unless you have reservations somewhere. Also be careful about fights at any sporting event, not just New Orleans. Lots of drunks. I'm glad we went to the French Quarter to say we've been, but no plans to go back at night. Pretty raunchy. We knew ahead of time it would be that way so we weren't shocked. Love the city and there are so many wonderful things about New Orleans. Don't be worried about the route to the campground. Once you get there it's awesome. Wish we had reserved a site on the water. Their super sites are great! Road going to campground is rough so go slow.