Tutorial: Customizing Your Pre-Service Atmosphere
The Pre-Service Power Pack has 8 animated backgrounds that are fully customizable templates. Each animation comes pre-transitioned, so you don't have to worry about making each slide fit together... simply put one slide in front of another, customize it, and you're done! Set the motions to loop in your worship software (like EasyWorship, ProPresenter, MediaShout, etc) to play it continuously before service starts.
The tutorial is included with the download (with a TON of images AND a bonus Mini-Movie "Our Cell Phone Policy"). Here's the tutorial on how to customize the Pre-Service Power Pack, even if you don't have the download, it will no doubt give you a couple hints on improving your pre-service atmosphere.