(note: Apparently this was explored and then dropped. I had no idea until today, 10/1/09)
There were minor photoshop touchups here (spot removal, curves, and only a tiny bit of saturation and vibrance adjustment). But seriously, follow the simple directions in the above link, get a pretty girl (it pays to have pretty friends like Cammila here), and take some fantastic shots. It's apparently that simple.
1 sb600 at 1/4 fired into home-made beauty dish, about 3 feet above and one foot to the right of the subject. 1/2 CTO gel.
Fired with Cactus V4s.