We released this site last year, and I've been making tweaks as I go. It's currently in process of being upgraded from D6 - D7 on my local machine. I have yet to get the sermon section down, but I wanted to get a few ideas from the community on how to make it better. I didn't design the site, someone in our church did that. I just ported his psd to a custom theme.
Site: http://www.3rbc.com
Drupal Version: 6
Location: Irmo, SC (near Columbia, SC)