Hi Box the Fox,
I did go to Capetown in the end, with the Travel Department and had a ball. Despite it being early May when we went, it rained for the first two days (light drizzle) but it cleared up and we had 30 degree heat for the rest of the holiday.
We got to do Robben Island and Table Mountain, both of which are weather permitting. Hermanus and the winelands were great tours and I have to say I don't think I have been to somewhere as naturally beautiful as South Africa.
The tour guide that we had on this trip was the best one I ever met. Nothing was too much trouble for her and she really did go out of her way for us.
The hotel we stayed in was great - no problems at all. Would highly recommend the Winchester Mansions. An old hotel built in a colonial style that has been renovated.
A great trip - will go back someday.
By the way, I don't have any connections with the Travel Department.