Nice Post Poulsen made we want to be a Computer Geek.I got a couple to add
Jonathan James, He was 16 when he was arrested who hacked Nasa, and the Department of Defense.
And Adrian Lamo also know as the Homless Hacker used to Hack from coffee shops and Kinko's, His hits include Yahoo!, Bank of America, Citigroup and Cingular And The New York times
Even Though there are two White Hat ones I would like to mention Stephen Wozniak, and Tsutomu Shimomura who Help catch Mitnick Always found him interesting cause he wasn't what you could say a White Hat Hacker he had a other side that I think few knew about.
Have to look them up they are pretty cool.