Wizards of the Coast is running an article on their site giving d20 stats for prestige classes used in Knights of the Old Republic II
. If you've been dying to make a Dark Side Assassin, then, you've finally got the excuse. From the article: "Dark side assassins were originally trained by the Sith to be the ultimate hunters. The assassins' unique abilities served the Sith in their battle against the Jedi. After the Battle of Ruusan and the scattering of the Sith forces, this changed. Dark side assassins became less common as the Sith went into hiding, but their deadly purpose remained -- to destroy the Jedi."