hey mate ,
We are heading over for a week starting sunday . Its our first time too (with 3 kids 9 ,6 and 10 months ) . We have family members who go a fair bit and recommend Ben-Ewa campground . Its on the western side just up from the wrecks and offers alot of protection from the wind etc apparently . If you send me a pm in a weeks time i will get back to you with how it goes aswell as some pics etc.
Cheers , Jake