Carnegie Mellon Professor Randy Pausch (October 23, 1960 – July 25, 2008) gave his last lecture on September 18, 2007. It's an hour and 16 minutes, but well worth the time.
I saw a program on TV about this, and also an article in Reader's Digest. I also was following his blog, and noted he gave the commencement address at Carnegie Mellon this year. What a real, compassionate, generous, funny, loving, honest man.
I had only seen clips of the lecture before so I'm so glad you posted this. Wow. I really don't have words. I can't imagine all the people's lives he has touched and all the lives that will continued to be touched by the legacy he leaves behind.