In reply to BallsOfSteel:
It depends more on the shape, rather than the the "width" of your feet.
overall, my feet are pretty wide, but I've found nepals to be the best boots about for me., even though they're narrower than others.
what I would really reccomend for wide feet is a volume adjuster, and a supporting insole.
Ive found that alot of the time, because my feet are wide, its difficult to get the support they need, as supporting them side to side hurts.
whereas supporting them up and down, doesnt hurt, and makes them more stable side to side.
(to clarify, side to side is across the does, front to back is toe to heel, and up and down is the depth of the foot.