Dark Souls coming to Steam, consoles getting new DLC

Confirmed! The PC edition of IncGamers’ 2011 Game of the Year, Dark Souls, is coming to Steam. 
Further, this winter console owners will be getting the extra content included in the Dark Souls: Prepare to Die PC edition in the form of paid DLC.
Namco Bandai are calling the current Artorias of the Abyss and are pricing it as $14.99 on PS3 and 1200MS Points on 360. New bosses, enemies, weapons, armour and locations are promised.