Transcendental Argument for the existence of God

Over the summer I've been listening to a podcast on iTunes of a pastor from Boise, Idaho. The man's name is Pastor Matt Slick, and yes that's his real name. Anyways on his radio show he talks about using logic and reasoning within the Christian faith to help understand what the Bible says and to defend your faith. Throughout the show Pastor Slick has various guests to come on the show and have discussions or debates on different topics. Some guests includes Mormons, Atheists, Roman Catholics, and other guests that would be willing to talk about faith and reasoning. Now one of the biggest debates that Pastor Slick has with the Atheists is about the existence of God. The "big guns" that Pastor Slick uses towards the Atheists is called the Transcendental Argument for the existence of God (aka TAG). For what Pastor Slick has written on this, you can click the following link:
The Christian Worldview, the Atheist Worldview, and Logic

The basis that Pastor Slick uses on this argument is the existence of Logic and if it comes from a higher being. To me this has been rather interesting, especially since I am in the process of reading C.S. Lewis's "Mere Christianity". See, C.S. Lewis creates a similar argument, but uses Laws of Human Nature as one of the strong points along with using logic. However, as to what I have read so far in "Mere Christianity," C.S. Lewis can prove that there at least exists a god or higher being, not necessarily the God of Christianity. Now as I have continued reading on, C.S. Lewis does hint that he will present that the God of Christianity is what he is proving towards.

For those that don't know, C.S. Lewis had been an atheist, and later in his life had become a believer in Christ with the aid of a dear friend of his (J.R.R. Tolkien). To me with C.S. Lewis having been an athiest, then becoming a believer in Christ, he seems to be a creditable author and debator to whether christianity is true or the least to say that it is valid.

If you think that this topic seems interesting and want to know more about it, I suggust to check out listening to Pastor Matt Slick's radio broadcast through carm.org or on iTunes, and also read C.S. Lewis's "Mere Christianity".