As I know, both the Junior High School(Chu Zhong) and High School(Gao Zhong) in North York are very good. The high school: A.Y.Jackson is very famous. It's the number one in Toronto according to the local people and estate agencies. It's near Leslie/Finch(North of Finch and east of Leslie). The houses near that area is expensive in somewhat because the Junior High and A.Y.Jackson.
Hope this will be a little bit help. I saw your pad today. Hope it won't be too late.