Sam Storms is the author of Convergence, The Beginners Guide to Spiritual Gifts, One Thing and many others. He's a Christian Hedonist who writes at a more popular level than John Piper. And he's a great example of what Reformed-Charismatic theology can look like in practice. I almost met him in a lift (or should I call it an elevator) in the hotel at Together for the Gospel... he was in the lift when it opened at my floor but it was too full for me to get in... Shame, cos I'd have loved to thank him in person for his ministry.
Download free mp3's of Sam Storms from Bridgeway Church