I've been experimenting with mixing whey and casein in different proportions in order to get a daytime protein shake. The idea is to use it as an ideal protein replacement drink (combined with fat or carbs) which can be used during all training phases - bulking, cutting etc.
In the past, I've found 1:1 ratio of whey:casein to work well as far as catabolism is concerned. However, I feel that increasing the ratio of whey might make the drink more anabolic.
If you have tried making your own protein drinks from casein/whey, I'd be interested in hearing about your experiences.