Just got back from a four day defensive handgun course, and I must say its the most fun I have had in a long time! I did it through a place called Frontsight which sells itself as a firearms resort kinda thing. Check out their website. I wont link cause I am lazy and you should know how to work teh interwebs.
Anyways, they really taught you about gunfighting, more than just target practice. It was lots of fun, and I highly recommend it to anyone, even people who don't know a lot about guns!