Hi there! I just got started this year and I think I got off to a great start. First keep in mind that odds are slim that you will not get a good milking doe, from a clean heard for under $100, but when starting your herd, going cheap is soooooo not the way to go. (My aunt tried this and had been doing nothing but doctoring & medicating her goats and has got nothing out of them). There are times to penny pinch, but when starting out get the best you can afford.
Study up on diseases like CAE & CL. When buying stock don't just take the breeders word for it that the goats are clean and CAE/CL free....ask for documentation to prove it. Steer clear of sale barns....extremely high chance of buying diseased stock and there is no way for you to know if the goats have diseases like CAE & CL unless you blood test them.
I started out with 2 bred miniature alpine does (one is mine, one is my moms....they room together until botg of us can afford more does)...this way I didn't have to wait for kids to mature to breeding age, and I don't have to own my own buck for a while. Not to mention I get milk much sooner. If I had my own buck, I would need a separate pen for him, plus a wether or another buck as a companion (goats must always have a companion)....so that means extra $ out out on housing, plus at least 2 extra mouths to feed.....Just wasn't reasonable for me, so buying pregnant girls worked out great for us. We recently added another doe, standard size alpine and she is also pregnant
As for breeds....everyone has a favorite and you'll get SEVERAL opinions there. The miniature breeds are what we started with for the kids....Nigerian Dwarfs are the smallest and usually have very high butterfat content to their milk.....the mini dairy breeds are a cross between the nigerian and a full sized dairy breed (nubians, alpines, toggs, la manchas ect. ect) My mini alpine girls are a bit smaller than a full sized dairy goat and bigger than a nigerian. They require less space, and if you buy stock from someone with great milking lines, they produce a respectable amount of milk that usually has a high butterfat content.
My vote always goes to Alpines though.... I grew up with standard alpines and love the breed

On average they are high volume milkers (we had a doe as a kid who averaged 2 gallons a day), I love their personalities and you can get several pretty color varieties. Nubians are known to be loud and most I've encountered have been....on average they usually don't milk out the quantities breeds like Saanens & Alpines do, but they're not far behind on amounts and their milk usually has a higher butterfat content. Same goes for La Manchas.....and la manchas are known for their sweet, quiet dispositions... Of course, there are always goats who don't fit with what's typical of the breed.
If I were to choose a second breed to go with besides my alpines, I'd choose la manchas.
And keep in mind you don't have to go with a pure bred.....several people cross dairy breeds and get great milkers
The breed you choose is not nearly as important as getting clean, healthy animals from the very begining.... it will save you so much stress in the long run.
Best Wishes,
Crystal
http://noodlevilleadventures.blogspot.com