Is there anywhere you can buy official ES merchandise like posters, t-shirts, in-game items etc. ?

http://www.elderscrolls.com/ no posters or stuff like that but plenty of Walpappers for free and Guides and news

The http://www.cafepress.com/mwstore still looks to be online. The Oblivion store was turned off way back when, and they never produced public merch for Skyrim.