Tam, I'm left handed, and I don't see the need for a reversed 1911 (I do, of coruse, require an ambi safety). The only gun that has EVER spat brass in my face was the M16A1.
Bolt actions are slower to work, left handed, but if you're carrying a bolt gun fast shooting probably isn't what you're worried about anyhow.
Certain guns, like Kalashnikovs, seem made for lefties. Leverguns and pump shotguns are nice, too (as are any weapon where you'd be inclined to drop a round into the chamber).