This post by Scott Hargis in 2007 is one of the all time most popular posts on this blog. It's popularity, I'm sure, is due to the fact that he explains his technique of multiple off-camera small flashes. Almost everyone is interested in this subject.
It turns out that just a few months before the PFRE post, Scott did a tutorial, with examples, over on the Strobist discussion group where he describes this technique for building up a shot with 4 strobes. I've had a link to this Strobist flickr group tutorial for a long time but it's so far back in time that no one ever sees it. I think it's good enough that it deserves more exposure.