I'm partial to 9mm.... ammo is cheaper and, therefore, you'll practice more. Also, .40S&W seems to have a greater felt recoil than even the .45acp -none are bad, just something to think about.
That being said, Taurus has a .40S&W version of their LC9 knock-off. I saw it at Palmetto State Armory earlier this week. Ruger probably does too..
Ed
Yeah I'm favoring the LC9 and even tossed around the idea of the LCR .38 special to carry. It seems like a pretty sweet double action revolver
