MAN vintners has some very nice wines at a really reasonable price. They are South African, as is Goiya, another nice, reasonably priced wine.
There are lots of German whites available from $5.00 and up. Leonard Kreutsch, Weber, and several others bring us Liebfraumilch, Riesling, and other varieties at reasonable prices.
Depending on the day, you can pick up 2 750 ml bottles for 6.99, usually South African or Australian.
(I'm a front end manager at a Kroger that has a very nice wine section and I act as the wine steward whenever I can)