Yeah, I understand that, I was just responding to the point about Donald.
Anyway, Australia have faced as many quality pace attacks as anyone over the last 5 or 6 years, and dismissing the SA attacks in the last series is like saying England didn't face a good attack this Ashes because McGrath was injured, Gillespie and Kasprowicz was out of form and the attack was led by Lee and Tait. You always run into unpredictable circumstances, players get injured or gain or lose form or whatever, it's really beside the point. If you're looking for another attack with five bowlers including three who bowl 90mph+, you won't find one, but if you want another attack with multiple bowlers who are very good and capable of troubling any batsman there are a number, and Australia have succeeded against every attack around at the moment aside from the current English one (and indeed, they have against Hoggard and Harmison).