From now until the end of October, Microsoft is having a sale on select DownLoadable Content on the Xbox LIVE Marketplace. Xbox LIVE’s Major Nelson announced today that content for Oblivion, Mass Effect, Lost Odyssey, Forza 2, Guitar Hero 3 and Beautiful Katamari have been discounted 25-60%.
While I already have the Shivering Isles, 1600 is well worth picking it up if you have not already.
Hit the jump for the full details from Major Nelson