Jay G has just written an article for Shooting Illustrated on choosing a gun safe.
Budget is really the limiting factor when choosing a safe, with selections ranging from less than $100 to the “wow, do they still buy kidneys?” range. A simple locked metal box for a single handgun can be found for the same price as a box of premium ammunition, while a fire-, water- and theft-resistant safe that can hold several dozen long guns might cost as much as a good used car.