In reply to MG:
> Take a look at the Vittorio Sella hut above Cogne. Various day options also a traverse to the GP area. Great hut, good food, friendly staff.
Absolutely. Enough stuff to go at there for four nights. Even better, if you can work out the transport, to traverse over to the Chabod via the Gran Serra (Grand Serre) and another col I've forgotten the name of. You can then do the Gran Paradiso from there (it joins the VE route) and ski down to Vittorio Emanuele. The next day do Tresenta (or not) and skin/ski round to the head of the valley - the col du Grand Etret - and ski down into Pont (this is a great descent and just so much better than carrying your skis down from the VE).