In reply to gavin82:
Ps,
My feet are also narrow at the last, although not so narrow at the ball, and the Sportiva's fit very nicely indeed (although I ordered a size too short..)
Tried on Scarpa Jorasses to compare and they felt wider and shorter in the same size, although the shorter feeling might just have been a result of my foot slipping forward due to the extra width.
Also, my old Raichle Boots felt good, if a bit wider at the ball than the Sportivas. I think Raichle were bought by Mammut?? so Mammut might be worth a look? Haven't tried on the Charmoz to give you a comparison unfortunately.
Hope that helps,
Murray