I get mine through a local cooperative. It's Guernsey and is brilliant. The pasteurised, homogenised stuff is filth in comparison. As with anything like this, hygiene is key.
The hygiene hoops the producers of raw milk have to go through are extraordinary. You could eat your dinner off the parlour floors in these places. Pasteurisation, while saving may lives during TB's height, has also allowed for some (and I only say some) farmers to get away with questionable hygiene. Also, I don't know if this is widely known, but if a farm tests positive for TB, the milk STILL goes into the food chain if it goes to a conventional, pasteurising dairy. So does the meat from the carcass. The cow gets destroyed. For what? No gain at all as far as I can see.
The sooner we get a vaccine, the better.