If you live in 薄扶林, have you even considered St. Stephen's College Preparatory School in Stanley (http://www.google.com.hk)? It is the primary school attached to St. Stephen's College (the secondary school). Beautiful campus, and excellent program. I understand they teach in between a traditional school and an international school. And it should not be too far from where you live.
However, I do not know whether they have a kindergarten. And their school fees are quite expensive, even more expensive than ESF schools, but cheaper than private international school.