Hi Tony,
First, I know exactly how you feel! There are so many questions and never the right answers it seems!
Kangaroo Point (yes, the most australian sounding suburb ever) is great. Close to the city, public transport, schools and a hospital (Mater).
Kelvin Grove, where we just moved to, is perfect for us. There is are two hospitals close by (one in Herston and one in Spring Hill).
Not sure if it helps, but when we moved we found some good resources and tips here http://removalistsbrisbane.info
Here's a link to Brisbane Flood Maps - select your suburb and you'll see the flooding for that area.