Cheapest in 3 *moons on camel camel
YMMV on shipping. to 4000 was 89$ delivered.
cheapest in au is $115 pickup or plus delivery.
http://camelcamelcamel.com/Corsair-Series-Performance-Liquid…
other deals here
http://lifehacker.com/amazons-running-a-sale-on-everything-y…
some not shipped to AU.
*Cheapest in 2 Months