Anytime.
The thing is there's 100's ( that's not an exaggeration ) of people all looking to get the same effect. yet no one has a defined answer.
This guy has the right idea, BUT, it's using 3rd part software Animation Master.
http://www.renderosity.com/mod/tutor...tutorial_id=63 Not sure it's actually being sold anymore.
But in the mean time I'm going to have a play around with Maxon Cinema 4D, and Maya to see if they can tune a B&W pic, and I'll still keep searching.
As someone else suggested slighty earlier, We may well all be chasing rainbows and the the real trick to it is getting the lighting right in the first place. But we're all lazy so no harm in looking.
Here's another good example
http://www.flickr.com/photos/23555495@N00/169223445/