In reply to JStearn:
Cant sing the praises of my Crux hardshell enough... Great jacket; very simple but tough as old boots and perfectly designed.
Not the cheapest, but I got it half price from Needlesports one time (lucky, as I was always lusting after one in my favour colour... yellow!).
Otherwise, I've also had good experiences with Outdoor Research jackets, which are much lighter weight and duty. More zips etc, but less of a true mountaineering jacket.