Booked my last farmhouse stay - two nights at the Kraankuil Guesthouse, about 30km south of Hopetown. Pieter (the farmer) tells me that they have had good rains recently, and the place is looking beautiful. Apparently his wife has just bought a camera, so she will be enthusiastic to show me around the farm as well as learn something about photography.
The farm is also next to a main rail line, so perhaps there will be a chance to capture one of those great Karoo freight trains.
That's why I stay in farmhouses - its a great chance to meet really great people who really know their areas, and are always willing to help an ignorant traveler!