Thanks! It does sound like a great trip. We went to South Africa for the plants for that was our main focus. We spent two or three nights in Cape Town when we arrived. Then we drove up the Western Cape for a week before returning for one week in Cape Town.
When we first arrived and did not have a car, we took the
City Explorer bus to see the town. It will take you to up to the tram for Table Mountain, V&A and Camp's Bay. It was a rainy day when we took it but it is a good way to get around. It also stops near several of the museums. When we visited there wasn't an option for the Peninsula so we took a taxi to Kirstenbosch. We took taxis several times around the Central Business District. We were staying at the hotel which is now
The Grand Daddy. It was a good location for us. We ate a couple of times at the restauants in the V&A Mall (Baia, Willoughby).
We rented a car and then toured up the Western Cape to Bushmans Kloof (excellent), Springbok, Nieuwoudtville. We were there in September when the Cape was in bloom and we were hunting for flowers. We returned to Cape Town and spent a week just outside and did several day trips. We drove around the cape stopping in Simonstown, Cape; Karoo Botanical Garden and Paarl wine tasting at Fairview (Goats Do Roam) Winery, a second trip to the wine country to visit Vergelegen winery and Franschhoek, a day trip drive to Hermaneus which has wonderful scenery. It was all wonderful. I don't have nerve enough to do the shark Cage dive but I don't have any problems self-driving around.
We did not do a trip to the township. I think it would be an interesting trip. I used Fodors and there are some good suggestions of township trips on their forums if you are considering a tour.