Once again you can earn more interest with an instant access from RaboDirect at 4.76%, the highest you can currently get for 1 month is just 3.8% as of 13th of June 2013, check this page Compared the best rates for 1 month term deposit for the most up to date interest rates, see the RaboDirect term deposits to find out more about the 1 month period:

Term Deposits with High Interest Rates | RaboDirect Australia