Jane , don't worry about schooling, with the current, constantly increasing, pollution levels ( 30% of the year viz below 8Ks, and most of the year between 200 and 500% above WHO levels ) your kids wil be spending a lot of time at the doctors and/or, god forbid, in hospital. The medical scheme is pretty good so most of it will be covered.
DB ( fantasy island ) is a great place to live, you can drive around in your golf cart looking like you are in the latest model Mercedes ( might as well, they cost the same ), and have a Fillipino lass do everything for your kids, including wiping their bum, for $700USD/month, she might even wipe your bum too but that wil cost a whole hell of a lot more than 700 ( just ask around ).
Tax is great, around 16% average, because especially as an expat, you get nothing for it, no public school ( not that you'd want it ), no medical ( OK, you can sit around the hospital waiting for 6 hours if you have an ID card ), the most congested roads in the world, oh and did I mention the pollution ? They wil get you when/if you buy a property with stamp duty, and then you have to rent the land off the government ( more tax ), but this should'nt worry you either as you will need around $4.5 million hkd to buy a modest 1200sq' apartment ( not in town )
Good luck !
Helmet, check, flak jacket, check.......Incommmmming