seriously, you're all wasting ur time, and money on whey alone. Plenty of studies support the fact that a combination of whey, and casein, or whey and soy yield greater muscle building effects than just whey alone. And yes, even after training because you give your body a sustained release of amino acids through your bloodstream to the muscles. Why do u think u always see, "eat a small meal an hour after ur whey protein post workout shake." It's cause u absorb it like crazy fast, and u don't digest all of it. How can u in an hour? Pay a little more for greater results. Since i've made the switch to the mix, i've had better stregnth, and size gains than i ever did with whey alone. (sounded like a radio advertisement). If u want value, here's the best deal i know of. Syntrax Matrix 5.0 is a 5lbs bag of whey, micellar casein, and other mixed proteins for 30 bucks. Can't beat that, and the taste is great. Get it at bulknutrition.com. Another one, better quality, for just a few bucks more would be Nitrean from atlargenutrition.com. Per serving, it's got a little more protein punch than the Matrix 5.0 stuff per serving. all in all, both are a good value, yeah!