I visited Wang Zhiping in Beijing last year. Make sure you have a cell phone to call a taxi, because his school is in the last unpaved part of Beijing (not literally, of course, I'm sure there are other unpaved areas....), in what many Westerners might consider a slum. Getting there, the Taxi driver hadn't even heard of it, and when I left, I had to walk 3 miles just to get back to a main road. So the school is nothing like the Great Wall backdrop they had on Human Weapon. It was definitely a fun visit though; Sifu Wang is a very nice man-- we must have talked for about an hour (though I would have far rather watched his class...).

Another person teaching in Beijing is one of my kung fu brothers, Marco Lee (Sifu Lo Man Kam lineage): http://www.poweredge.ch/~wckf/