Hey guys, my dad called me today and "commissioned" me to pick out a gun for him. Definitely has to be 9mm, DA/SA w/ manual safety, polymer OR a very light alloy gun... The rest has been left to me. I have a few ideas but figured extra input and voices of reason are always good. O, price range is preferably under 550ish, a little higher is fine for suggestions but not something like a USP that is several hundred over. Gun can be full sized down to a something you can at least can get a full grip on with medium-sized hands.