http://twitter.com/#!/HarveyNormanAUends today for those that are quick, go to the Harvey Norman page, follow that page and then find the status that reads
Ends tomorrow! Follow & RT to win one of these: http://bit.ly/HNReward20-1 or: http://bit.ly/HNReward20-2 #HNRewardwhen you see it hit the retweet - make sure you follow the page as well