If you've been dreaming of surfing in Sydney or hiking around fjords in New Zealand but have yet to book a flight, there's a new points deal that may make your decision a lot easier.For a limited time, members of American Airlines' AAdvantage program can earn up to 25,000 bonus miles on eligible flights to Australia and New Zealand operated by American or its partner Qantas.MIKE HEYDON/JET PRODUCTIONS/MARLBOROUGHNZ/NEW ZEALAND TOURISMYou'll earn…