If you are looking for short term "furnished" accommodation in the area, ideal for SE Brisbane, have a look at
http://www.destinationbrisbane.com.au/
They quote "Fully Furnished, self contained, three or four bedroom houses in the East of Brisbane area with an airport Meet & Greet facility available if required'
I've seen one of the houses myself, and it certainly beats a motel room, and it's cheaper :)
Very good for the first few weeks, while looking for a more permanant place.