In the bedroom, in the closet bolted into the concrete floor by a professional, that's where you are likelly to be if someone breaks in when you are home at night, you will probablly never be in the garage. Also I want them in the air conditioning, in FL. And it's too easy to break into a garage, and hard to get an alarm system that won't "false" from wind rain etc. Bad guys know you may have a safe, it's just going to slow them down enough for LEO or you to get back there. Given enough time any safe can be compromised, just ask an old time safecracker. I would never consider the garage for a second in FL. You would be better off in the living room or office, if the bedrooms don't suit you. Just build it into the furniture or a closet. I learned a long time ago weight means nothing "ask a moving man" and concrete can be ripped up quick with a sledge hammer and cut with a torch if you have rebarb or metal rods. If they want it they will get it if you give them enough time. Dogs and alarms are a big help.