In a blaze of glory, preferrably in the act of saving other lives or at least with the knowledge that I'd changed at least one life for the better.
Age? Well as old as I can get, when I can't get it up anymore it's time to check out.
I'll let you in on a little secret. A lot of people have living wills and "Do Not Resucitate"'s. I've got a DNR that goes beyond. If something happens to me to where I'm going to be a permanent "vegetable" or totally paralyzed, I've made an agreement with an old close and trusted friend that he will help me end it. A quick overdose of morphine and I'll just go to sleep and never wake up.
Mike.