Moving to BSB early august with small kids (Brasilia)

Hello!!!

We are now leaving China to come to Brazil, and I need to know very quickly what are the things that I would need and that are hard to find. We are a Canadian-Israeli family, with two boys Protected content 5 years old.
Also I am trying to understand how to go about housing - heard it is pretty nice to get a house by the lake? How much of a commute if working in city center? About kids groups and other activities during PM? And also I will need to find household help - any suggestions??