You can find several versions of the last lecture of Dr. Randy Pausch of Carnegie Melon University on You Tube, but no one has a better version than ABC. The one listed below is the one that was done by their News Division:
This URL has an 18 minute version of his last lecture. It is well worth your time.
Please note that the lecture is not depressing nor morose, but he shares what he has learned from looking at his death about his life. There is plenty for all of us to learn from this man, who at this writing, is still alive.
What I would really like is this. If you choose, listen to what he has to say, and write a comment about what you saw, learned, discovered, whatever made an impact that's worth sharing. Thank you.