I have just added a section on God's existence since I seem to have posted on this more than I thought I would.
This a protestant approach to the existence of God. It is called Presuppositional Apologetics. Pretty interesting. It takes some thinking. I don't agree that evidential proofs of God are useless but usually more helpful to believers.
video 1
video 2
video 3
video 4
Here is a debate using this method
http://www.premierradio.org.uk/listen/ondemand.aspx?mediaid={D11C366F-F393-4C99-BE1F-E18CE00F7D63}