Thank you to everyone who replied, your feedback is greatly appreciated! To answer a few questions:
1. Not planning on kindergarten right away, but some time in the next 8-10 months we may think of putting him in some type of school where he can get immersed in Cantonese.
2. I am not a Yank (Bolivian) but I am a US permanent resident, and will be returning to the US with the same company in 18-24 months.
3. I will definitely look for something on the Eastern side, but am also considering Discovery Bay. We lived in New York previously so I know about commutes! Is there affordable rentals that are nice in DB?
4. Our family is conscious on eating organic foods, would this change where we would want to live? We know it's expensive.