an old girlfriend actually preferred powdered milk. i can't stand the stuff; tastes too watery for me. it is supposedly much cheaper, and obviously easier to store. but as far as nutritional value, as compared fresh milk, it's identical.
i've heard good things about a brand called "morning moo" powdered milk. supposed to have the fresh milk flavor and texture, if you let it rehydrate overnight.
in nomine patri, et fili, et spiritus sancti.
Meh nom eh noh...doot dooooo do do do.