This video is one I made from an MP3 download of Ravi Zacharias' talk called "Ravi Answers Atheists". He's got his own channel at YouTube.com/rzimmedia. He's the most encouraging and well-thought out speaker of our day. Please listen through to the end. You will be glad you did!
His website is RZIM.org, or call 800-446-6766 - here's a link to the page on his site to listen to more of his talks online: http://www.rzim.org/resources.aspx