Here are some great discussions on various worship topics with Mike Harland and Ed Stetzer.
Transformational Worship in a Transformational Church
Mike Harland and Ed Stetzer discuss a variety of worship topics in this October 2010 video from LifeWay Worship
Worship: Reverence vs. Relevance
Video of the September 2009 webcast with Mike Harland and Ed Stetzer discuss a variety of worship topics in this video from LifeWay Worship