No worries, you will enjoy Queensland, it is a tropical zone teeming with wildlife - geckos and fruit bats can be heard at night, water dragons and green tree frogs are commonly seen at day time about the place, which is something I have never seen here in Melb. The best 'hands on' zoo is Currumbin Sanctuary on the Gold Coast - if you get a chance to go there (its 2hrs drive from Brisbane) it is worth the trip - you get to cuddle a koala and hold baby crocs amongst other things. The night tour is excellent - you will see the cane toad 'plague' that emerges at night, get to feed and pat possums, see the croc enclosure with their 5m female sleeping suspended in the water lit from beneath (it is an awesome sight) and see Australian owls and tawny frogmouths up close.
Good luck and hope you have a great time. Sorry for getting off topic!