Tim Keller has been a hero of mine for a while. I first heard of him at a conference on preaching at Westminster West and listened to his talk repeatedly. It was on cassette tape so that should tell you roughly how long ago that was.
Tim has a book coming out that kind of answers the new Atheists. It is called The Reson for God: Belief in the Age of Skepticism [1] and it is not aimed at the Christian book store but the bestseller list.
Anyway, though a Facebook group which shall not be named here I found out that there are a set of Tim’s sermons available for download [2]. I’ve snagged them and will be putting them in my iPod. I recommend you do the same. And get the book, it is going on my wish list right now.