Bryan Habana equalled Jonah Lomu's World Cup tryscoring record as South Africa beat Argentina 37-13 to set up a final showdown against defending champion England.
The Springboks, champions in 1995, beat England 36-0 in the group stage, but that will count for nothing as they prepare for a rejuvenated England side.
Importantly England now have a fit again Johnny Wilkinson, whose extra-time dropped goal clinched the 2003 final against Australia, and landed a penalty and a dropped goal late in England's 14-9 semifinal win over France on Saturday night.
But while England have been criticised for playing a style of rugby that relies on Wilkinson’s boot, South Africa have a point scoring machine of their own who is more much crowd pleasing.
Flying winger Habana crossed once in each half to surpass Australian Drew Mitchell's seven tries for this tournament and equal the mark of eight set by New Zealand great Jonah Lomu at the 1999 World Cup.
His first was a solo effort from halfway eight minutes before the break, chipping ahead and regathering.
He grabbed an intercept in the 76th and sprinted 75 meters to score, without even reaching top gear.
Healthy halftime lead
South Africa led 24-6 at halftime via tries to scrumhalf Fourie du Preez, Habana and No. 8 Danie Rossouw.
Percy Montgomery landed a perfect three conversions and penalty in the first half and two penalties in the second, to show the Springboks have an accurate kicker of their own.
Argentina's only try was contentious, five minutes after the break, when TV match official Tony Spreadbury ruled that outside center Manuel Contepomi got downward pressure as he reached over the line in Montgomery's tackle.
Replays suggested Spreadbury was clearly in charitable mood for the South Americans who were playing in their first World Cup semifinal.
However, it proved academic as their own grinding style never looked like catching the flying start of the South Africans.