I like the idea of having a swing-out bedroom door with deadbolt. I'll have to remember that when I get my new house.
You guys ever watch It Takes a Thief? They have some really interesting ideas for home security, even if I don't completely agree with some of them.
My problem though is the new house is a split-level with me in the lower, friend and her daughter upstairs in separate rooms. I'm not really sure how to do a 'safe room' situation with that house.