When you are hammered with so many deals in Hong Kong it can be nice to log in somwhere and check prices to see what really is cheap.
Here are my tips for Kowloon:
At T.S.T you can go to the 4A Bookshop Cafe. 18-20 Cameron Rd.
You can go up the elevator and inside you will find a small bookshop with internet terminals. The sign on the street is small so go with your eyes open. Lovely people also.