Returning to South's original, reasonable question...........
Your wife will need to get a work permit which will require the Company who employ her to sponsor her visa. This is becoming more difficult recently due to the number of people who have obtained permanent residence status, (being 7 years after the change of ownership of HK!). (When a Company sponsor you they are liable for the employee's tax bill should they do a runner, whilst you are personnally responsible if you have a permanent residency status).
It used to be possible to sponsor one's spouse, but that has changed now. Some of the larger Companies are pretty well organised in obtaining work permits for people. Theoretically they have to substantiate the reason why they cannot recruit from the local market place. More and more companies are however insisting on permanent status.
Sorry if this is negative, but good luck anyway.
