3d CG Scenery

I'm looking to get a background designed for green screen sections in my upcoming dvd. I will need an image from only one angle. The image is a 'virtual lab' or 'virtual classroom' belonging to an archeologist/historian. This does not need to be photo realistic - in fact is shouldn't be photo realistic. For a vague style idea see David Mitchell's soapbox on youtube or itunes. I will need full copyright to the finished image. It does not need to be animated - although I wouldn't be opposed to small recurring animations within it.