Factory overclocked gtx670 with a custom PCB and custom fan.
Bargain for the Aussies?
$499 for the same card in aus with no postage.
I don't know much about galaxy but here's the best review I could find.
http://www.youtube.com/watch?v=hpsZsF0ksDc
it's only 6% cheaper and i assume you won't get Aust. warranty ???