For France summer skiing, definitely go to Les Deux Alps as theyve got a glacier with a park comparable to Mt.Hood/Canada's kinds.
Camp wise,SMK Snow Camps in Les 2 Alps. Amazing facilities and accomodation in the town and prices for a week start from £245, which is unbeatable in Europe. Definitely getting your moneys worth and more for that.check out the website here alsohttp://www.smk-camps.com/summer11/en/
I'm going mid August and really excited!
Hope that helps!
P.S, if you do happen to book, please include the reference - cam@smk-camps.com