Ryan Sandes: My Antarctica Experience in Sports Illustrated Jan 2011.
It's about winning the Last Desert race. What's more, he has now won all four races in the 4Deserts series: Gobi, Sahara, Atacama and Antarctica.
My response to "Want to know what it's like to run in knee-deep snow, freezing temperature conditions..." is: that's easy, only knee-deep huh? That would be about 50 cm, but we have currently about 70 cm, and we are going to get a lot more before this winter is done.
But I guess it would be way cooler to run in Antarctica.