I know I've had a few of these "what gun should I buy" threads but I'm actually serious this time. I have $600 in hand to spend on a good 9mm CCW. I've gone out and held about a dozen different guns and my favorite so far is the Springfield XDS in 9mm. The only gun I haven't held that I want to is the S&W M&P Shield, but I can't find one anywhere. I know a few of you have the Shield and I've heard its a really good gun. Have any of you handled/owned both?