Just got back from a month in NZ yesterday. What a great place - you'll have a riot.
If you're passing through Fox Glacier on the W coast, spend a night on Gillespie Beach which is about 15km due west. It's one of the most awesome places I've been. We camped on the beach which is covered in the petrified remnants of old trees, lit a bonfire and watched the sun set over the ocean with Mt Cook and the Southern Alps visible to the east.
We hired a Mitsubishi estate from Quality Rentals for £330 for the month which seemed to be one of the cheaper deals around.
Have a good one.
