Young family moving to Busan

Hoping I can get some info.  We are a young foreign family moving to Busan.  I was hoping for some help and advice on where is the best area to live - near shops etc.  What are peoples thoughts on the 2 schools - BFS or ISB?  And other families who I may contact as we arrive in July before school starts.  I have an 8 month old son and 6/7 year old daughter.  Any help is appreciated. P.S.  Does anyone know if I can get weetbix - my 6 year old daughter's favourite food.  Always have to get it imported wherever we are living!!  e.g Turkey, Spain, Austria etc!