Thanks again for the replies guys.
I will stop past a few garden centers this week and have a look at the Sir Walter. After lots of looking, it seems EZ isnt available anywhere in SA, and is too expensive to ship in from interstate.
The area that needs to be covered is quite large, so a seed would have been a cheaper option, but they tell me you cant grow SW from seed. Can anyone tell me if it grows quickly if i put in little tufts every 30cm in a grid formation?