Began in October of 2011: the Romans sermon series:

Romans 1:1-7 audio
Romans 1:8-17 audio
Romans 1:18-32 audio
Romans 2:1-16 audio
Romans 2:17-29 audio
Romans 3:1-20 audio
Romans 3:21-31 audio
Romans 4:1-17 audio
Romans 4:18-25 audio
Romans 5:1-11 audio