Not to go into too much detail, but there is a great tutorial on creating a animated section cut line moving vertically (or horizontally) through a rotating model. While perhaps a bit gimmicky (nor do I know the fidelity of the import), this is perhaps yet another way to show models. If anything, it shows a completeness to the internal workings of the project, and might be instructive to show circulation patterns which tend to be difficult without looking through several plans, etc.
Be sure to check out the video at the end of the post.