The Treasure Principal until noon, April 16th (pacific time).
If you have never read (or heard) anything from Randy Alcorn, I highly recommend his writings. He has keen insight and a vivid way of communicating why it is important for the Christian to have an eternal perspective.
Randy recently visited Harvest Christian Fellowship in Riverside, Ca. for a "conversational Bible study" with Greg Laurie. You can view an excerpt below or watch the entire study here.