Like Bigcountry said those are expensive guns just for home defense.For home defense one of the Ruger semi auto's would be fine.The Glock's are another good choice and allot less expensive then the H&K,Kimber and Sigs.I use a Glock M-27 for my CCW guns.I've had it for along time and has proved to be reliable.Another option is buying a revolver for home defense.Get a 357 mag and you can practice with 38 spls.You have allot of different options to choose from.Go to different gun shops and ask opinions. Handle as many as you can and see which one feels good to you.What may feel good to me might feel terrible to you.You have to make the final decision.I do agree with you on your choice of caliber.The 40S&W is a great round.
Ruger Redhawk