Something to note Chris, are you flying via LA and if so make sure you have your esta and if your flight number is changing at LA you have to collect your bags and put them back through.
The reason I say this is that mine nearly ended up going around the carousel for its holiday.
If you are flying internally when you get there try red star. Its a breeze compared to this country.
If you are going down the south island west coast (fjord land) make sure you get some insect repellant as the sand flies are like the scottish midge on steroids.
