I have to agree with Desperado, an Isreali art is the way to go.
I've experimented with a few styles and Krav Maga and the FIGHT system have been the best for me. They are no nonsense and brutal.Unfortunately, I've moved and the classes aren't offered where I live.
FYI,the FIGHT DVDs and guidebook are pretty good.
Some links for you.
http://www.amazon.com/Complete-Krav-Maga...2940&sr=8-1http://kravmaga.com/http://www.commandokravmaga.com/http://www.fight2survive.com/http://www.kapapacademy.com/