I read this book around a year ago, and it's one of my favourites. If you've been enjoying the recent Warcraft[1] and Starcraft[2] blog posts from Patrick Wyatt, you'll love Masters of Doom. It doesn't focus on the technical details as much, but it's an excellent story.

[1] http://www.codeofhonor.com/blog/tag/warcraft

[2] http://www.codeofhonor.com/blog/tag/starcraft