Boer goats are raised specifically for their meat.
But you could potentially raise any (especially castrated male kids) to eat, as a kind of "by-product" from your milkers - seeing as they have to have kids in order to produce milk!
easily handled milkers could be Toggenburgs, Sanaan, Alpines - depends really on your choice, size, whats easily available.
have a look at them, and see what you like the look of (eg my husband isnt so keen on the anglo nubian, so we didnt get them!)
a search on a well known book site will show you plenty of books...
Katie Thear's "starting with goats" is good & reasonably priced as a basic one, alot are American so the regulations dont apply. Storey's guides are good (American though) and if you do eventually get goats, invest in a good vets' guide too...