Have a look at this site www.camping-jablines.com. We stayed at this site in October used camping cheques, it is a lovely site, in a country park area. The Site managers are very helpful, Euro Disney is not far and the station is there to get in to Paris. It is also Dover/Dunkirk side of Paris so you do not have to worry about getting round Paris. Have also stayed at Des Quatre Vents, I think the pitches are better at Des Quatre Vents but the facilities in the country park and peacefull suroundings might match that. We were also able to stay outside the campsite if we wanted an early start.