I'm down in Victoria, and use a BD Mid. (In fact I have two) We camp with my wife and I and the two kids, now eight and six, and have been using it since they were two and four. I bought a floor, and sewed on my own insect mesh, before the nest was available.
They're seriously a great tent, with an absolute sh*tload of room for sleeping. They get a bit small with gear, and we drop all four packs into one, pull a pack liner over it and leave it outside at night.
I know they're considered fringe down here, but only till people see you all climb out in the morning.
Drop me a PM if you like, I'm happy to have a chat on the phone. Paddy Pallin's down here sometimes has one in stock, so they may have one up there. I can email you some photos if you like.