Andrzej Dragan is very famous for his portrait photography and specially for his portrait retouching.
Although his retouching technique is kept as secret as coca cola formula, many (if not all) of the photoshop gurus are trying their best to come as close as possible to his retouching style.
There are many techniques and many tutorials out there on how to accomplish the, what is now known as, dragan style or, if you prefer, how to draganize your portrait.
but this is the first photoshop tutorial I see in video format.
hope it helps