Gamestop has discounted the digital PC version of Skyrim and all it's DLC on their website. You have to install the Gamestop PC program, but you then can get the codes and install them on Steam.
http://www.gamestop.com/browse/pc?nav=16k-3-skyrim,28zu0,138c-a
Skyrim is $29.99 normally $39.99...