New Zealand and Fiji do not require special visas. You will get a "holiday" visa upon entry to each of those countries.
In Australia, you will need an Electronic Travel Authority (ETA). Some travel agents may handle this for you, but it is required for entry
into Australia. An ETA may be obtained at the following website
(http://www.eta.immi.gov.au/).
There is a link to the application form in the upper left hand corner of the website.
You can find passport applications and detailed information on how to apply on the webpage of the U.S. State Department:
http://travel.state.gov/passport/passport_1738.html. Generally, post offices and sometimes courthouses serve as passport
application sites.
