Regardless of how you feel about guns, I think everyone would agree that if you choose to own a gun, you should be trained in its safe and effective use. I learned to shoot at Insights Training Center and have nothing but good things to say about the school and Greg Hamilton, the founder and chief instructor. The system they teach is very logical and thought through. It truly is a system that integrates the same principles through unarmed, knife, handgun, and long arm self-defense. One bit of evidence of the quality of the program has been two championships and multiple top five finishes for Greg, his instructors, and students at the National Tactical Invitational.
Even if you don't choose to own a gun, it probably isn't a bad idea to learn how to handle them safely. Of course, there are a lot of classes from Insights that aren't firearm related as well including unarmed, folding knife, pepper spray, and others.
One of the things that appealed to me most about Insights is that Greg takes a very pragmatic and unglamorous view of guns and self-defense. For instance, in the first General Defensive Handgun class, when we were all on the firing line, Greg said that if he had this druthers, we'd spend the whole class running away as soon as he blew the whistle because that was the best way to handle a fight; of course, he knew we'd be upset about spending two days and few hundred dollars running sprints. He also warned that a defensive shooting would probably ruin your life emotionally and financially; there is nothing heroic or appealing about shooting someone else. It would simply the be price of protecting yourself and your family.
The classes are also just plain fun. There aren't too many other places you get to move around, yell, and shoot thousands of rounds in a safe environment. I haven't taken the unarmed class yet, but friends who have said it was a hoot to be able to hit someone (in a padded suit) full force.
I already use the learnings from Insights everyday; I am much more aware of my surroundings and take simple precautions like locking my car doors as soon as everyone is in. As a result, I hope I'll never have to use any of the more violent lessons from Insights, but I'm happy to have the option to do so if the time comes.
[post edited 4/10/2006 to correct a glaring typo]