Even in the christmas days, Bioware seems to work to give the fans new informations. In the media section of the new homepage, a new developer video can be found.
This video is about the dark side ingame. The developers give informations about the classes "Sith-Inquisitor" und "Sith-Warrior". Role models of this two characters where the Imperator Palpatine and Darth Vader. Both have different strategies, to gain more power of the dark side. The Sith Warrior uses pure aggression and force to carry out his conflicts. The Sith Inquisitor depends on his force-manipulation and wisdom. To help you understand this better, there is a little preview about the equiptments and combat styles.
But enough said, just enjoy the video !