ON is a favourite of mine. Haven't had better quality or taste, even at higher prices. Haven't had their
casein as yet, but it did win an award and was the highest seller on BB.com.
Something from the production end; expect protein prices to rise significantly or expect quality to become dubious. Milk production in Aust and New Zealand (where most of the supplement companies get their whey and casein) is down so there is less available for higher end stuff.