a href="http://en.wikipedia.org/wiki/Woomera_Instrumented_Range">There is already one here. A small one, but there used to be Redstone launch pads. It's in the middle of a restricted area the size of England.

I see Kistler is planning on using Woomera as their main launch site, and there are rumours that Virgin Galactic will set up a second spaceport there.