I'm planning a trip in June 2009. First, how's the weather? Is there a better time to travel?

We're currently planning the following:

1. 3 nights JNB (we might reduce this to 2 nights depending on your feedback)
2. 3 nights Kruger (Singita or one of the other top-end camps)
3. 3 nights CPT (if we reduce JNB to 2, we will do 4 nights here)

So, is the above itinerary a good way to spend 9 nights in SA, or would you allocate your time differently?

Also, for CPT is it better to stay in the city/port, or better to do one of the farther away resorts like Arabella.

Any other advice and feedback would be appreciated!