www.Gracehead.com has some teaching MP3 files that are tremendous.
The collection is increased every so often, so check back for new additions.
HERE is the link:
http://www.gracehead.com/myrandomfiles/Teaching%20MP3/
A good set to start is the Bob George audio.
'I, the Lord your God, have commanded all everywhere to repent and come to Me in the Christs name and build Me a church, a church of men, not by men, a church all in all in Christ. One God, one Son, one Church, one name, the only name given by which you must be saved!' ~ God - Volume 3 - 'Worship the Lord Your God as I Am, Not as Men Would Have You Worship'