Thought some may find this interesting. The following link is to a short (26 min) recent lecture by RC Sproul giving his take on presuppositionalism and explaining why he is not a presuppositionalist. Sproul also explains that he does not consider himself an evidentialist either, rather, he claims to be a classical apologist.
SermonAudio.com - The Case for God
SermonAudio.com - The Case for God