Hotapple Are you on Facebook?? Find a group called Hong Kong Schools and ask on there because at this stage of the school year you will need to be quite open to suggestions as you've missed the deadlines for applying for a place for your oldest- when is he 5, because that impact if you're looking for a K2/reception place or a Y1 place.
Kellett Kowloon campus doesn't open until Sep 2013, and if you're not on the list already and don't have a debenture then you wont get in this year for reception and unlikely for Y1.
Similarly ESF Clearwater bay will be full for year starting August 2013 and wait list is massive, but if he's 6 in 2014 then he'll be in Y1 now (Jan-Dec cut off) I think he'd be Year 2 which may have places
HK Academy opens in Sai Kung this year as well (August). Again, you've missed the cut off, but check their website re which year your son would go into.
Hong Kok Yuen International school has a good rep but is not in Sai Kung
Harrow is on the gold coast. Amazing campus. Great atmosphere. Very impressive. Very expensive BUT do seem to have less pressure on places than some.
Basically, the entry year is always the worst. After that, places do come up.
Be aware that some schools eg ESF, runa Jan-Dec cut off. Others (Kellett and Harrow) run a Sep-Aug cut off, so if your childs birthday falls between Sep-Dec they will be in a higher year at ESF than at Kellett/Harrow
HTH