unfortunately i found google checkout is not available outside the USA
well not Australia would have to wonder why hope the google God is listening
There are other safe payment methods you can offer like Paymate -- is based in Sydney, Australia. They have websites for both its Australia users and its New Zealand users.
Sellers from this region have a great alternative to PayPal. Sellers can receive money from over 37 different countries -- that means buyers from over 37 countries can use this service to buy what they are looking for. Fees are very reasonable: a seller could easily make a profit using Paymate. The overall payment service is designed to send money email-to-email. That makes this service even easier.
Another one is Moneybookers they are a reputable company with above average financial resources. This service allows you to send and receive payments from around the globe. It is free to signup -- once you get going the whole thing is set up in under 10 minutes. The service can be used to send money person-to-person (to an email account) as well as used for auctions and other online business activities.
Hope this helps bring in more customers to your store on Bonanzle! :)