Christianity Today has an excellent interview with Eugene Peterson [author of The Message, and other great books] online. You can find it here.

A great "teaser" quote from the article:

"I think relevance is a crock. I don't think people care a whole lot about what kind of music you have or how you shape the service. They want a place where God is taken seriously, where they're taken seriously, where there is no manipulation of their emotions or their consumer needs."