The title says it all really. One day only. Also make sure you take advantage of this associated bargain:
http://www.ozbargain.com.au/node/10692
And don't forget to get your 5% back via MoneycBackCo:
https://secure.moneybackco.com/merchants/DealsDirect-com-au/
Very nice … saved about $20 postage and also used the code for the $10 voucher.
Thanks!