Good advice, and there are some good deals on weapons to be had out there. Local used gun websites can be an excellent place to pick up an extra 12 GA, or another 30.06; something that uses the common ammunition you should already have stocked in quantity. Lots and lots of good, clean handguns are out there too, it just takes a little bit of looking.
When the rubber meets the road it would be nice to make sure that guy next to you has something besides his Johnston in his hand...
That's why I wrote it, thanks for "getting" it.