Sandbox

Our pastor at our church asked me to research possibly adding some kind of photo montage on our website that may be able to be placed at or near the top of our home page. It could be as simple as a few pictures that blend from one to another in one large image...or it could be an animated montage of photos that change every few seconds. Is anyone aware of any good Joomla component and/or module that might allow us to do this?