Drunken Master is my all time number 1 due to the young Jackie Chan's superhuman performance
Closely followed by Snake in the Eagle's Shadow (Hwang Jang Lee = jaw dropping skills)
Closely followed by Enter the Dragon. After you watch this it's compulsory to watch 'Kentucky Fried Movie' immediately for the 'A Fistful of Yen' spoof. No questions, just do it!
Iron Monkey is good for a laugh
Jet Li's Fist of Legend is also really good fun
Once upon a time in China 1, and 2
Once upon a time in China and America (again, bad but good)
Shanghai Noon (uno mas?) but NOT Shanghai Knights (what were they thinking?)
Have to agree with the earlier comment about Seven Samurai, awesome movie
The first Rush Hour movie still makes me giggle
Kung Fu Panda was surprisingly good, due to references to other movies
Romeo Must Die is stylish and funny in places
Drive (with Marc Dacascos) is hilariously bad, so bad it's good again (how can anyone not like a movie that contains the line 'well, if it isn't my favourite cheese eatin' d*** monkeys')
All of the Baby Cart series except for the US rehash 'Shogun Assassin'. Particularly Baby Cart at the River Styx, but it's only good if you've watched all the previous ones
TV series 'The Water Margin'
Books James Clavell's 'Shogun' and the accompanying early 80's mini series adaptation
Bloodsport (for the cheese)
Kickboxer (ditto)
Best of the Best (if you're a TKD fan)
Addendum
Hero in HD for it's stunning visuals
Crouching Tiger, Hidden Dragon