I agree with "KAH-toe." It just seems respectful to pronounce names as those who hold them determine. Titles--well, that's another matter. I once knew a guy whose last name was spelled C-o-r-n. People asked him how to pronouce it. The answer? "Corn"! My own last name, Leonard, usually comes out "LEE-oh-nard." That's when I know it's a telemarketer.