While it is technically illegal to sell unaged raw-milk cheeses, most decent cheese stores (fox and obel, whole foods,etc) often have young ripe cheeses that they claim are unpasturized. I am not sure how much i trust the store labels, or the salespeople, but if you can see the original labels, on the european cheeses it will almost always say "lait pasturize" (sp?) if it is pasturized, or "lait cru" if it is made from raw milk. My personal favorite cheese is St marcellin, a small ripened goats-milk cheese from france. I have bought 3 different brands in Chicago, Curet and one in a ceramic dish, both of which are pasturized, and one that was raw and was about 2.5x the price of the others. I couldnt tell much difference. The Curet is the most often available, and if you let it sit in the fridge until you see liquid being released by the rind (usually about 4-6 weeks) it is unbelievably good. I serve it on a good brick rye or pumpernickle.
-Will