I did that talk in the fall of 2005. If i find it, i'll post it here when i get home.
But i introduced the talk with grand theft auto (for the "shock" factor). Then you have to go on about how god hates anyone that loves violence.
The thing that i remember the most is the ending.
"So friends, whether the game takes place in the past, present or future, we'd be mindful to avoid violent videogames: