In reply to Happy Haggis: Ailefroide village campsite in the Ecrins used to be a great campsite. Facilities are(/were) OK, but the village has a little market type shop and a reasonable gear shop, and you have boulders in the valley within 10 mins walk (there's one in the campsite itself I think) and all the various longer, well known routes around all within 15-30mins walk.
Others on here will know better than I of current state of the place, I last went back in 2009, but it is a really nice spot.