The first expansion for Dragon Age: Origins, Awakening, is now live on Xbox Live Marketplace.
The download for it comes in at 2Gb, with a added pricetag of 3200 MS points.
Go get it here.
The BioWare RPG expansion should be enough to keep you going until next Ferbruary, when the sequel for the main game is probably due.
PC and 360 retail versions are out on Friday. The PS3 version is download-only in Europe, but does get a retail release in the US.