What type of camper are you looking at. A pop top caravan type like a Jayco or more a camper trailer. Have a look at my Camel Camper at viewtopic.php?t=1180
I camped for years with three kids from when they were babes util late teens in a cabin type tent so know where you are coming from. If you are looking at a camper trailer I know that mine would be big enough for a family that size and there is the added comfort of a queen bed for you and your wife.
Trouble is there are so many options on the market these days.
Might be worth while checking out a caravan camping show. Not sure where you are located but here are a few coming up.
Gold Coast Caravan, Camping, 4WD & Boat show
16-18 March 2007
Victorian Caravan, Camping & Touring Supershow
28 March 2007 â€“ 3 April 2007
National 4x4 Show & Outdoors Expo
30 March 2007 â€“ 1 April 2007
PS. Good name you got there