dang, I just wrote a huge reply and the computer wouldn't take it!
Here's the clif notes: take plenty of water, ice, bug spray, charcoal
don't forget your tackle... I did once
Duck season starts the 31st so hunters won't be a problem except maybe a little extra traffic on the water setting up blinds.
You'll probably have the campground to yourself. There is an outdoor shower, it may or may not have water. No bathrooms. The racoons aren't as bad as they used to be, but still lock your food. I keep ours in a large plastic bin and wedge it and the icechest under the picnic table bench. Tie your trash up high too, or you'll have a mess in the morning. There seems to be less gators out there now but you will see them. They won't bother you unless you get between them and the deeper water (search my gator story on here). Don't forget about fishing the surf. It can be great, and well worth the 2 mile walk to get there. Also consider taking a big rod for use at the camp. We've often seen big sharks in the boat basin and near the camp.
You're gonna have a blast. My buds and I are heading down Thursday for our 10th annual fall trip. I'll post results next week. PM me with any more ?, I'll be glad to help.