I've been reading lately that AO renders are the new chrome sphere/lensflare. While I have to agree--I will also admit that they are currently one of my guilty pleasures. So until they are completely out of vogue (who would imagine such a thing back when we were making chrome spheres!?) heres an AO render of a computer chamber done for some concept art for a film.

One of these days when I have time I need to return to it and re surface for myself.