Number 1? Oh, you know us! We'll duff it somehow, we always do!
In all fairness to the Proteas, though, we're a lot tougher mentally than we were a few years ago. Most of the "crumble brigade" of the 90s and early 2000s have retired and so some of those memories of epic chokes have lost their grip in the changeroom. Under gary Kirsten there isn't likely to be much room for the flan-like mental poise of the past, nuggety character that he is.
Imran Tahir certainly owes us a few wickets, though. Everything seems to suit him going into the last day. I think folk have been unfairly critical of Swann in this match - wrist spinners generally get more turn out of tracks than finger spinners (It's their special brand of evil!)
Winning this Test will be important, but even more important will be the follow-up by Smith and company in the Second Test. There needs to be more ruthlessness and drive. This is a good, young-ish SA side that needs to develop a culture of going for the throat when they're up.