Hot Toys has just released product pictures of their recently announced Leonidas 1/6 scale figure from the film, 300. This figure's estimated release date is targeted to be sometime in the 1st Quarter of 2010.
The King Leonidas figure uses the muscular body developed by Hot Toys. I presume this will be the same muscular base body use in the recently released 1/6 scale figures of Major Dutch (Predator 1) and Christ Redfield (Resident Evil).
Click on this link to Hot Toys' website to view more product pictures of this figure: