I bought two buckets in June 2010. One was a sauvignon blanc, which was 5 gallons of juice, and one was a 5 gallon bucket of pinot noir grapes.
Both came out great! The sauvignon blanc made 5 gallons of wine, while the bucket of grapes made a 3 gallon batch of wine (after pressing, etc).
Broken Leg Brewery
Giving beer a leg to stand on since 2006