Hiya welcome to poms in oz,have you looked at the 'our brisbane' website,, this gives you lots of info on different suburbs ,a good read is the where to live guide on Greater Brisbane,lots of facts n figures.One of the main real estate websites is
Real Estate, Property, Land and Homes for Sale, lease and rent - realestate.com.au this gives you an idea of property and rental prices and you can search by suburb.hope this helps you a little but fire away with any questions and someone will be able to help,,
Cal x