cheap and golf do not go well together here... In Hong Kong, you cannot touch a golf course without a certified handicap card and about $800+... not including clubs, balls, etc...
In China, its a bit cheaper, but you should go with a group so as to not be confused with the courses and stuff. I personally enjoy going out to zhongshan every once in a while, and it is about $600 for a guest card if you are playing with a member...
There is a great driving range in TST, right opposite to kowloon station (orange line). Without a membership, expect to pay about $150-200 for a few clubs and balls for a couple hours. There is also a few more ranges that are cheaper as you get out of the city. The driving range also has a great thai restaurant inside the facility, so if you go it would be a good idea to take a bite there...
If you ever wanna go, I try to head out there at least once a week.