Hi Langer,
I ended up doing the trip by flying into South Africa and then onwards to Kenya. I didn't need to produce the Yellow Fever card (i flew back from Nairobi). I arrived back on Monday and still taking the Malarone - have to admit, even though i was taking them in the morning, i still suffered very vivid dreams!
Unfortunately i started getting ill in my last few days there and have come home with flu, sinus infection and a chest infection, so not the best!