Model N68V-1DDN-E5DS. Postage is $17.84 to Sydney or $6 handling fee for pick up.
Should be this card I think:
http://www.inno3d.com/products/graphic_card/gf600/gtx_680.html
Good deal for 16GB of 1600MHz RAM.
Specs: http://www.teamgroup.com.tw/filterable_product/tabs_detail/data/en/9/640/zfKsFi.html
Compatible both as dual or quad channel according to that.
Just noticed Trine 2 is one of today's daily deals. Only 5 hours left though!
http://www.gamersgate.com/summersale
Also, Trine 2 Collector's Edition is $6.25.
It's Summer Sale on GamersGate and we all know what that means. Yes! Discounts and offers on hundreds of great games, including daily deals with up to 80% off!