2K Games and Gearbox Software have released a couple of unreleased footage from the first expansion of Borderlands called "The Zombie Island of Dr. Ned" showing the locations of the new island that will be added to the game and the fearsome creatures that address. The content will cost 800 Microsoft Points and will be available on the Marketplace on 24 of the current month.

Borderlands - Dr. Ned's Elevator DLC Gameplay | HD version
Borderlands - DLC Zombie Island Gameplay | HD version