Serame (not Chateau Serame) has a wide selection of varietals in the 5-8 Euro range. It is served by some of the local dining establishments as the house wine.
I've heard good things about the boxed wine they sell at Leader Price, but I just don't want to lock into 4 liters of wine at a time. i seem to recall it's in the 10 Euro neighborhood.
I've also had good experience with Vin D' Alsace, most of which are in the 6-10 Euro range.
I have stuck to the French wines rather than US ones.