For safes, you have the regular old vault, which is an option. You can keep more than just your stash in there. There are many sizes and varieties, but I believe the most important asset to a safe, besides the giant bolts and combination entry, is the fire and water proof protection. (see add below)
If you don't want to go all out there are some more affordable and creative options called diversion safes! (see below) (Classic Book, Ajax Can, Light Socket)
Or my personal FAVORITES (Clock, Power Serge, Fridge)
The best type of safe is the kind that NO ONE knows about, but either way you decide to go, a safe of some kind is always a good idea!