... the last thing that I'd want to have happen is a family member get hurt or killed in the crossfire of a shootout in my home... I know a gun vs gun is far better than sword vs gun, but how does one defeat a home invader without fighting the invader?
There have been a lot of threads on this subject, and it is an important one. (Search on "Don't clear your house" for one.)
The best principles are to identify what is important to you -- life or death important -- and what
isn't. Place the things that you would be willing to risk death over within your inner most defensive perimeter, and consign the rest of the property to the status of "insurance will cover it."
First, avail yourself of whatever early-warning systems you can. An alarm system is a very good idea. A decent DOG that has run of the house at night is arguably even better. They can give you enough time to enact your response plan smartly and while minimizing the risks to yourself.
HAVE A PLAN. Make sure your family knows that you will react to a threat, and that they should stay put and get low and behind cover if they believe trouble is present. For the adult members of the household, make sure they know their tasks. And know how to respond when the police arrive.
(
Wife, get low behind the bed and get 911 on the phone. Adult son, grab the 870 and take a low position behind the door frame where you can see down the hall. Kids, get low on the floor behind your bed and stay put until one of us comes to get you. At the first inkling of an intruder, arm yourself and get into position. No one leave their spot until you hear me give the all-clear. Or something like that.)
Try to figure out what spot by (or in) the bedroom(s) you can take a strong point of defense and control the approaches to the sleeping area. When you're alarmed, go to that spot and take cover. DON'T go investigating noises. Use your senses to figure out what's going on. Do you HEAR movement? Voices? Multiple? ... or was that just the cat or the wind knocking something over. Use your ambush position to give you the time to discern whether you're facing a threat and what kind it is.
If someone IS in the house, and they're just taking "stuff", don't risk your life to go get that "stuff" back. Your job is to protect your life and those of your family. If you have a way to alert the intruders that they've been spotted -- without endangering yourself -- like turning on lights remotely, or even hollering to them (
"Do NOT come any closer! We've called 911! The police are on their way!..."), you can scare off most intruders without even
seeing them.
If they are bent on harming you, make
them come to
you, up the "fatal funnel" of your chosen approach path. If you've set your house up well, and made good preparations, you should be able to know that anyone coming your way down that hall or up those stairs is not friendly. A good plan will make that approach route long enough that you have some time to evaluate who's heading your way. You can set up lighting to put approachers in a lighted area while you stay in darkness.
Time and time again simulations and scenario testing has proved that the hunter is at a grave disadvantage to whomever is staying put. Even in YOUR OWN house, you will be at a disadvantage if you're moving around trying to find an intruder. DON'T go hunting them. Make them come to you. Even if you're armed with a firearm, you will lose more often than win if you enter into a room where an intruder/attacker is positioned.
A sword is a really really bad defensive weapon, in this instance. You are highly unlikely to face an attacker armed with a sword. ANY projectile weapon defeats a sword. You cannot effectively control a "fatal funnel" entry corridor by securing yourself at a commanding strong point with a sword. A sword gives you the false sense of being adequately armed, but then prompts you to go out and close to contact distance with a foe. That's just
bad tactics.
Harden your house. (Security system, dog, lights, etc.) Make a simple PLAN, and make sure your family knows what they're supposed to do. (i.e.: don't go wandering around) Get a very inexpensive pump shotgun (generally the best idea) and practice with it until you can run it well. And fix your mindset on protecting your life and your family -- first, last, and only.