Wanting to get more teaching than just Sunday morning and Wednesday night? Check out some of the guys below. They all have podcasts that you can find on iTunes or on their websites, and they are all legit spiritual teachers. Most are pastors, and the websites link to their respective churches. To find podcasts, check under the Media tabs.
Francis Chan: http://www.cornerstonesimi.com/
Mark Driscoll: http://www.marshillchurch.org/
David Platt: http://www.brookhills.org/
John Piper: www.desiringGOD.org
Ravi Zacharias: http://www.rzim.org/