In reply to londonoring: try the scarpa Instinct range. I've got both the Instinct Lace and Slipper and they're great in terms of width. I've also got a pair of Anasazi VCS that aren't really wide enough for me, and am planning to replace them with the Galileo once they die. Based on a store comparison between the VCS and Galileo, I'd say the instincts should be width enough for you.
General note about shoes that are too narrow - they can lead to mortens neuromas (swollen inflamed nerves in the feet) which can require surgery if they get bad enough.