I know this is a skeptical forum, but I thought it might be a good idea to list some of the really good guys out there. I'm not trying to advertise, but more just recomend some good reading and viewing to those who might be interested in realistic stuff from some of the best instructors around.
I've not had the opportunity to train with all of them, but I've been studying their work for quite some time.
Lee Morrison (obviously

) Lee has had more impression on me than anyone else. And it's a real privilege for me to one of his instructors (and student). I'd highly recommend all Lee's stuff, but to start out with: "Fight back" DVD and "On the SHarp Edge" DVD (in my opinion THE best counter knife concept that I've ever seen).
Some other great guys worth look out for!
Carl Cestari - OSC 1-5
Kelly McCann - Combatives series 1, 2 & 3.
Geoff Thompson - "Three Second Fighter", "The Fence" DVDs
Jamie O'Keefe - "Dogs Don't Know Kung Fu", "Human Stun Gun" DVD, Pre-emptive Strikes for Winning Fights (Book).
Den Martin
Simon Squires
Richard Dimitri - all his vids are great! "Get REAL" DVD set
Bob Spour - SAS Fight secrets
Southnarc - Practical Unarmed Combat DVD
Bill Kipp - ABCs of Self-Defense DVD
Nick Hughes - French Foreign Legion and Military Combatives series 1 - 6
Peter Consterdine - "Pavement Arena", Ultimate self-defense Seminar" DVDs, "Street Safe" Book.
Tony Blauer - "SPEAR ABC's" DVD
If anyone else has some ideas pop them in, so we can build up a good referance!
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"Extraordinary claims require extraordinary proof." - Marcello Truzzi