The Elder Scrolls IV: Oblivion DLC Sale

Bethesda has announced a week-long sale on (virtually) all of their downloadable content for the Xbox 360 version of The Elder Scrolls IV: Oblivion. If you're looking for the Horse Armor plug-in, though, expect to pay extra:
In celebration of the arrival of April, the wackiness of April Fool's Day, and the upcoming 3rd anniversary of the release of Horse Armor (Friday, April 3), we are pleased to announce that for the next week all Oblivion DLC for Xbox 360 is half price, except for Horse Armor, which is twice as much as usual. So if you've been waiting for just the right moment to get The Vile Lair, or Knights of the Nine, or Shivering Isles, now is the time.

As always you can get your DLC on Xbox Live or through the marketplace on Xbox.com.

Here are direct links to the DLC content:

Shivering Isles — on sale for 1200 points

The Fighter’s Stronghold — on sale for 75 points

Knights of the Nine — on sale for 400 points

Spell Tomes — on sale for 40 points

The Vile Lair — on sale for 75 points

Mehrunes’ Razor — on sale for 125 points

The Thieves Den — on sale for 75 points

The Wizard’s Tower — on sale for 75 points

The Orrery — on sale for 75 points

Horse Armor — marked up to 400 points
Unfortunately, none of the prices on the PC version's DLC website have been marked down.