Hi Chris
We went to Normandy last year and stayed at Port'Land site, and I can't recommend it highly enough. It's part of the Sunelia Group. The owner and his wife a really friendly and helpful. It's a fairly big site, but spotlessly clean and quite reasonable, with a really nice restaurant, indoor pool, etc You're not far from Omaha beach, and a visit to the American Cemetery there is quite emotional - over 6000 graves.
Also, you're not that for from another landing spot at Aramanche, and the round cinema there is not to be missed. There are no seats, just handrails, and the entire walls inside are screens. The film they shown is a mixture of orignal footage from the D-day landings and also scenes from the countryside today. With the sound effects you could almost believe you were there at the landings. You can also visit the church ST marie Eglise, where the paratrooper got stuck on the steeple in the film 'The Longest Day'. They've left a dummy paratrooper hanging there, just to remind people. If you want any more info about the site, let me know.
Charles