One of the most brilliant business minds of all-time there is no doubt. Michael Dell single-handedly changed the personal computer industry, and now is having an impact on everything from servers to portable music devices. His "Direct" concept has been one of the most astounding business principals the world has ever seen. A $5,000 investment in Dell stock over a ten year period would have been worth $1.8 million dollars. Astounding, growth like this is seldom seen, and visionary leadership like his is even rarer. Right now Michael Dell is one of the greatest CEO's in history, and his legend is secure for all-time.