This past weekend I spoke at the No Doubt Apologetics Conference in Indianpolis. They have now posted my detailed notes from the session, and should be posting audio and video in the near future. You can download the notes here.
Although I do deal very briefly with textual criticism, the majority of the presentation was on how we got our New Testament canon. You will plenty of resources for further study in the footnotes of the document as well. You are welcome to leave any feedback in the comments here.
CORRECTION: The updated version can now be found at this link.