We are planning on going on holiday to Tunisa in September 2010. There will be 8 adults & 11 + 12 year old. (Budget is about £650/800 each + spending money no more than £300)(cheaper the better)

We are definitely going to go all inclusive but would like advice on where are the "must see/do things"

We havent picked an area to stay in yet but our criteria to suit everyone is;

Diving club,
Car Hire
Kids entertainment,
Sandy beach,
Swimming pool
Spa treatment
Quad Bike Trip
Camel Trip/ Desert Trip (should we book in UK or at resort?)

Any recommendations/advice etc is appreciated
Thanks