where do you live? we applied for the gov't voucher (anyone with a working/dependent visa can apply). our son goes to kindergarten in a local kindie in sai kung. there are quite a few other western kids in the class and some mixed kids (like my son). although they use chinese for instruction, by the end of the first year, the kids can all understand what is being said. by the end of the second year they start speaking and some are fluent. the teachers all speak english fairly well as well.
the best part... we pay $160HKD/month... yes, you read that right... $160/month!!! that is for a 1/2 day, 5 days per week