Two years ago, I first heard of Oscar Pistorius, the South African double-amputee runner. A paralympic champion, he's petitioned for the right to run in the Olympics. He won his latest appeal, and now has no legal barriers preventing him from running in Beijing!
His parents are pretty amazing, too. From Day One, they emphasized what he could do, rather than what he couldn't. They ignored the conventional wisdom of what was "realistic" for his condition. Though the disability is different, Oscar and his parents were part of the inspiration behind Suravi and her family.
Here's a vid clip of Oscar running in Rome in 2007 for the first time against able-bodied runners.