10/4/14 Update: Menu updated.
The Cart is located to the left of the walkway down to Le Cellier.
The Unibroue is the best beer value in World Showcase and the St. Ambroise beers are fairly rare in the United States. A bottle at Total Wine would run you around $4, making them reasonable values as well. La Fin du Monde is fantastic and one of the better beer values in World Showcase.