Have you read any of the Stieg Larsson (sp ?) books ? The Girl with the Dragon Tattoo is the first one. I've only just started it but am impressed so far and its been recommended by quite a few people.
I have just finished this three cups of tea which isn't my kind of thing normally and you read the back cover and think 'yawn, schools in Pakistan, how very dull' but I thought it was amazing, very inspiring
Greg Mortenson seems like a very nice chappie indeed