Auto-complete / Auto-suggest for suburb (esp. Australia)

Is there any preferred AJAX 开发者_高级运维auto-suggest API out there which has a database of a list of suburbs (esp. Australia) as the user types into the textbox?

Found the solution here:
- http://www.geonames.org/export/ajax-postalcode-autocomplete.html
- http://www.geonames.org/export/free-geocoding.html
- http://www.geonames.org/postal-codes/

Read about AJAX, JavaScript, XML etc. first... Then you can check out (for example) jQuery and it's Autocomplete plugin.