In reply to robhorton:
Did the Vanoise a couple of years back, didn't go the Dent Parrechée option. The only snow we encountered was a few large patches to cross approaching Col de Chaviere. A little Skype but it's such a well trodden route it was really no bother.
Clothing-wise I took 2 tops, 1 pair shorts, 1 pair trousers, 2 pairs boxers, 2 or 3 pairs of socks. I took my normal summer boots and a pair of trail shoes, but after the first day the boots stayed strapped to my bag. Worth a warm layer, gloves and hat and early rises to catch the sun coming up.
If you want any info on the huts I'm happy to provide it.