Sorry for not repling earlier but this may be of some use to someone.
My feet were a bit cold on the summit day on Ac and I wore scapa vegas with a berghaus gatter stuck on. Also if your going with an organised group you MAY find they want you to wear plastic double boots. There is also rumours that the rangers check taht you have plastics but the only thing THEY checked was my blood presure. Which was 145/90 at 4200m (camp argentina) and was enough for them to stop me climbing that day. any way thats another story. We actually summited around the 12th of January 2006 by way of the Polsh traverse, dirty hole of a bloody mountain I was so happy to summit, not just to top out but so as I NEVER had to go back.