Bill over at Physics Ramblings has written on how Cornerstone (the church of which I am a member) applies the sermon to non-believers and how a plea with the unbeliever is made. I would urge you to read it and leave your comments there.
You can read "RSVP to whom?" here.
-What are your thoughts about invitation time?
-Do you think Charles Finney's message and style was a good thing for the church (he brought about the modern altar call)?
-How do you present the gospel to unbelievers (and believers) during your sermon time?
-Do you do communion weekly? If so, why? If not, why not?