An Evangelical Lutheran Blog run by a Father Eckardt has a post up on Extemporaneous Preaching.
In the post there is first some discussion of the Eckardt’s theology and understanding of Preaching. What was of particular interest to me however was his methodology.
One interesting point is that the preacher must have an immersion in the scripture and the use of Biblical language in the sermon. He calls for thinking in and speaking in the language of the Bible. He also calls for the use of the KJV because of its beauty in language.
It is a good piece and I would suggest going on over and looking at the other suggestions that Eckardt provides.