I like telling stories myself, and I feel like this article does a good job of encouraging people to cut right into the gold mine of the story instead of tantalizing people with it to the point where the audience loses interest before they even strike gold.

If there are details you'd like to add to a story before you really get into the meat, I find that it doesn't hurt to tell people up front what the big deal was, and then elaborate afterward on what led up to it.