If so, is there a website for more information?
I found this all by using Google.
You will probably need to take a taxi to the terminals (bus or train) as they aren't - as far as I know, though I could be wrong - situated anywhere near the airports. Your best option to get from the airport in Johannesburg to the Johannesburg city centre is the Gautrain (http://join.gautrain.co.za/). about 10 years ago