Bethesda plough ahead with details on it's next mission pack the Thieves Den.
The planned download sees you battle for control of a massive cave, complete with a haunted pirate ship. Once you conquer the lair, it yours for the length of your time with Oblivion.
Detail from Xbox.com
Update! Bethesda have finally overcome localisation difficulties which prohibited some European countries from downloading the plugins. Thankfully all downloads are now available on xbox marketplace. Hip Hip Horrayyy!