B.B.
We have 4 pygmy/dwarf goats and love them. We are actually looking at getting more. They are easy to take care of and our moma is easy to milk. The kids (of the human variety) are getting use to the milk and enjoy playing and taking are of the goats. Our doe had no problems with kidding. Part of it depends on their lineage. If you are planning on breeding them, ask the people you get them from if their mother had difficulty with kidding.
As far as food, they won't need much supplemental food. We make sure that we give them sweet feed (you can find it at Walmart) because its a god treat for them. Once they have cleared your property you will have to give them hay, but they don't eat a whole lot. I highly reccommend little goats to anyone. We really have enjoyed them. Good luck!