Hi Suzie,
I did this holiday last Sept and it was a great time to go and the most brilliant holiday! If you can afford it, go for it and if possible do the Victoria Falls add-on as well, it was the icing on the cake! The main tour is excellent - every day was a highlight and the game drives were fantastic! Victoria Falls was absolutely amazing - you can do either a helicopter or microlight flight over them and there is a wonderful sunset cruise on the Zambezi included. Other highlights on the add-on are an optional dinner on a train like the Orient Express and a day trip to the Chobe National Park in Botswana, which was divided into two - a morning cruise and afternoon jeep safari. See my testamonial for more details. I am very fair skinned and for years avoided holidays where it was hot, as I get prickly heat, bites etc. But don't worry, I've now got it cracked! To avoid the dreaded prickly heat, rashes and bad reactions to insect bites take Piriton, beginning the day before you leave. Put sun cream on first thing in the morning (I've discovered Piz Buin sensitive is the only cream I'm not allergic to!!), then follow this with anti-mosquito spray about 20 mins later - make sure it's 30-50% DEET to keep the mossies away. I also used the DEET wristbands and kept bite free. Spray yourself again in the evening. Keep the air-con running in your room and this also acts as a deterrent. The weather was great on the hol - low to mid 20sC for the Cape Town area, rising to 30C+ around Kruger and 35-40C in Zambia. I didn't think I'd be able to survive these temperatures and problems with bites, but I was absolutely fine! It would be a real shame for you to miss out on this trip of a lifetime, so do yourself a favour and go for it! If there is any further info you'd like, please don't hesitate to ask.
Cheers,
Bob