What official documents do I need to bring with me in order to marry a Chinese lady?

Please tell me what official documents that I would need in order to marry a lady in China?
Furthermore, how much would this cost in the PRC?
Also, please tell me the procedure by which she could accompany me back to Canada.
We would like to live together as husband and wife in Canada.
I need to know what type of visa she needs to apply for and what documents she would need.
Also, how long would this take and how much would it cost?