In reply to domwhyte:
After trips to many parts of the Alps, for a walking tour I'd recommend the Tour of Vanoise based on the Cicerone guide.
Did it last September and apart from the long ascent and descent on the first and last days, each day is easyish walking. The marmots seemed to be tamer than anywhere else and saw some gypaetes (vultures) closer than normal.
The huts were good and unlike my old French alpine trips, they all had draught beer from local micro-breweries - luxury.
Flew into Milan and got the train to Modane.
If you decide to go for it, email me and I'll give you more info.