Something new to listen to at the gym

I have had a gym membership for the past 3 years and am a horrible member.  Well since I climbed my first 14ner I now love going to the gym.  My roommate recommend that I bring my ipod to help me stay focused. WOW - does it ever help! I have been listening to sermons lately and stumbled across this series by Mark Driscoll. I keep finding myself laughing out loud at the gym.  This is a great series on dating. Check it out and let me know your thoughts. Redeeming Ruth