In reply to stephan harrison:
sounds like you are going a bit late for ice, I'd have thought Jan/Feb/maybe early March are much safer. But FWIW Briancon has excellent ice climbing within an hour drive (we only did easyish stuff because i am lump, but the left and right branches of Holiday on Ice at Ceillac are super at WI3) and you have the serre chevalier ski area on your doorstep which is huge.
Otherwise you could do aoste in which case you have Pila within an hour drive which is a really nice littel ski resort, although if you are good skiers you will get it all done in a couple of days.