Baja is great; although I'm reluctant to spread the news so that it stays less discovered. It is always warmer than West Coast US and usually cheaper and less crowded.
We are heading South for nine months around August. At least half of that time will be in Baja.
You definatly don't want to bring any guns or illegal drugs along since Mexican authorities are always looking for them. Why do you need a gun any way? Crime is about equal in the US. If it is important lock it up or hide it.