I've heard about wing chun not jkd! Tell me more..
Well JKD is Bruce Lee's take on martial arts, he studied wing chun under Ip Man and then changed some bits and combined it with his own personal preferences to form his own Jeet Kune do which in itself is more of a philosophy rather than a style.
Bruce Lee would say to use what is best for you, the individual as not all styles work for everyone was we all have different bodies, some tall, some short, some fat, some thin etc.....
The core JKD system Lee used is based on Wing Chun which became Jun-Fan Gung Fu. Bruce taught this system, which his students then taught it to others and so on.
Have a Google on Dan Inosanto as he was the only person certified to teach JKD before Bruce Lee died. He's been teaching it in the states for the past 30 years or so. The Sifu at the club I trained at had a direct linage back to Inosanto.
The club I trained at took the core Jun-Fan system which includes, punching, kicking, grappling, trapping (interception rather than countering)
there was a separate curriculum for Filipino Escrima (also known as Kai) which included some empty hands techniques which can be combined with JKD, weapons including single stick, double stick and stick & knife.
Have a look an the net and also check out Martial Arts Planet. They have a global club listing so you might be able to find something close to where you live.
I hope that sheds some light.
Cheers