Do the Gospels Contradict? by Michael Licona
Here is a talk by New Testament scholar Michael Licona in which he deals with the issue of apparent contradictions in the Gospels. (Video of this talk here at his Vimeo channel.) This is about one hour of honest assessment of the difficulties and possible approaches to the texts, followed by question and answer. More resources by Michael Licona here. His massive book on the resurrection here.
Full MP3 Audio here (90 min)