In reply to rob sykes:
I've found almost the opposite to Adam! I don't run in them that much so that might affect my view, I use them mainly as approach shoes.
In the La Sportiva range they are not the narrowest but aren't the widest either (Wildcats are wider), but in terms of all shoes out there they are definitely at the narrow end. My heels are very thin and are held nice and snug, my forefoot not quite so much but I find the toe box is fine for me. They've also held up well after use on plenty of rock and scree so no durability issues for me.
La Sportiva are great for narrow feet which is why almost all my footwear is from them. Maybe try a few of the styles and see which is best?