No to the 10mm. If you shoot the intruder and the power from the 10mm doesn't turn him inside out, you need a quick follow-up shot. Also, lets think of the noise when firearms are fired indoors. Not a primary concern, but a concern still.
No to the .45. Reliability is important. Use a gun you are familiar with and one where you don't need to think about the manual of arms at oh-dark-hundred. Reliability is important. I wouldn't want to be flicking the safety up when it should be flipped down. Did I mention reliability?
With the .40 and 9mm, it is a close call, but I would pick the 9mm because you shoot it better. My firing range groups are ( I'm assuming ) MUCH smaller than my "oh-crap-intruder-in-house-get-gun-fast" groups. By the time you use up 16 9mm rounds on a thug, either he will have accomplished his mission or you will have accomplished yours.
As an aside, politics of which gunmaker has sold out and which one hasn't doesn't mean a thing to the thug who wants your life.
[This message has been edited by Country Boy (edited September 15, 2000).]