Chris Cavanagh has an interesting idea over here. He's built a tool that will take some WPF and render a set of images from your XAML "scene" based on a set of criteria you specify. ie you can specify an area of the rendered scene to be converted to an image file and it can even handle animations and 3D effects. Data binding expressions allow you to change the look and feel of the scene from a simple xml configuration file.
I've not had much of a chance to play with it yet (I was looking for a sample 3D model to I could use to try it out and failed to find a suitable one) but it's definitely an interesting idea. It could make the generation of complex effects much easier for mere mortals like me.
Chris has also posted the source code for the app.