I was actually planning on getting a Ruger SR40c until I found a S&W Sigma SW40VE at my LGS, like new in box for $199.
If the Sigma is S&W's answer to the Glock 23, then the SR40 is Ruger's answer to both. It's substantially heavier than G23 or SW40VE, but as characteristic of Ruger, it's heavier because it's built like a tank. Seriously, S&W designed the Sigma specifically for the .40 S&W cartridge, and by all accounts, it holds up extremely well to a steady diet of .40 S&W, so I imagine that the more robust SR40 would last forever. It is to my understanding that like the Sigma, the SR Series came first in .40 S&W, then later in 9mm Luger, and is dimensionally the same as the SR40, so you could probably shoot hot 9mm NATO loads out of an SR9 no problem with minimal muzzle rise/felt recoil.