One of best offers for Australian consumers right now is from Amazon.co.uk, who are offering Free Super Saver Delivery to Australia and New Zealand. This is a genuine offer, the only criteria is you must spend over £25, which is roughly $39 (AU). Other factors you must take into account are that gift-certificates and items from third-party sellers on Amazon.co.uk Marketplace are not eligible.
It is easy to tell which items are eligible and which are not; simply place the desired item in the 'Shopping Cart' and underneath, it will state "Eligible for FREE Super Saver Shipping," if this is not stated, you will be required to pay delivery for said item/s. Also all items must be delivered together (you will have to select this option when you purchase).
So what is on offer? You can pick and choose from hundreds of CDs, DVDs, Blu-rays and Books. CDs and DVDs are priced from around £3.99, which is around $6 (AU). There is also a Blu-ray and DVD sale, which includes 2 Blu-ray titles for £15 - which is around $23 (AU). A range of books are also on sale.