In reply to JohnV:
I really rate my Aiguille Alpine Stratos.
http://www.aiguillealpine.co.uk/cgi-bin/trolleyed_public.cgi?action=showpro...
It is hard wearing, simple, lightweight and a good size for all round use.
It has all the features you need and none that you don't.
If you are doing ski touring then it might be worth getting Ski slots added to the outside of the wand pockets. Because Aiguille bags are made to order in the Lakes they should be able to add them for around a fiver.
Give them a ring on: 01539 822223 and ask to speak to Adrian. He's a top bloke and should be able to sort you out with any modifications you need.
It will last you forever so is a bargain at £80!
HTH