My girlfriend has told me that she would like to buy me a gun and I can't make up my mind. There are so many options. My current "serious use" pistols are a rtf2 g17 and a gen 3 g19. Her budget is 500-600. I have thought about a gen 4 g19, a m&p 9, a cpo Sig, a cz75 compact. I even thought about trading in something with the cash for a P30L. Anyone have any advice?