This book is from 1989, but it's a timeless and fascinating look at the minds of Bill Gates, Andy Hertzfeld (apple/mac), Dan Bricklin (visicalc), and 16 others.
http://www.amazon.com/Programmers-Work-Interviews-Computer-I... & http://www.amazon.com/Programmers-at-Work-Susan-Lammers/dp/0...
Some (all?) interviews free here: http://programmersatwork.wordpress.com/
Joel Spolsky also mentions his talents in some of his old posts as well.
The book is now out of print, but the author has a blog on which she is gradually posting all the old interviews and also provides a place to discuss the interviews: http://programmersatwork.wordpress.com/
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