Another software program is Nolo's Wlilmaker. We've used it for living wills and wills for both my mother and ourselves. Ours is fairly simple but if you have children from a previous marriage or other such complications, I would say to use these programs only as a starting point. That is, they help you get started thinking, but laws vary so much from state-to-state that you might need to have a lawyer to make sure you're on track. What you don't want to do is die intestate and have the state figure out what to do with your estate. That might turn out to be exactly what you do not want!
Wills are something none of us really wants to deal with, but they are so important. After my mother-in-law died we found buried in a drawer the start of a living will. She had never discussed it with anyone, including her husband, but she had marked that she did not want dialysis. And, guess what. She was on dialysis for about a year without any of us knowing her feelings on the subject. Luckily she was lucid just before the end and was able to make her own life-of-death decision. But we survivors felt bad when we found that partially completed living will. So I urge everyone to get going on it and please do discuss what you want with your family so they can, if necessary, make decisions based on what you really want and not on what you might want.
ArdraF