Looking for some opinions on a semiauto in 45 acp for a new carry gun. A little history: I started out a few years ago carrying a 40 cal Shield, as well as a RIA compact 1911 on occasion. I have since sold both of those and gotten into revolvers more, I know carry either a Ruger SP101 2 1/4" 357 or a Charter Arms Bulldog 2 1/2" 44 Special. I like my wheelguns, but have thought about getting another semiauto now. Wondering what I could pick up in 45 under around $600? I like 1911's, and am not into any of the Glock or XD lines; I have owned a S&W M&P fullsize in 45 and it shot great for me. And I'm not against something like a Bersa or Kahr either, just haven't ever been around any of them. Single or double stack is fine too, no preference there. Thanks!