Hi guys, hoping someone can help me out with my shipping modules.

Im from Australia and I want to setup my Shipping so anywhere in Australia is

$15 for up to 3 items.
$25 for 3 to 6 items.


Also I want to be able to ship oversea's with a flat rate for all countries other then Australia.

$30 for up to 3 items.
$50 for 3 to 6 items.

Hope someone can help me out it must be really simple just cant get my head around it and what modules to use.