In reply to bz:
It depends on where you are in NZ
I recommend Milford for Hiking and Trad climbing ( Google Darran mountains!)
Moirs mate is a 1.5 hr walk in but has lots of all natural pro multi pitch.
Mt Somers, canterbury is also Fantastic Trad climbing much closer to Christchurch. Quite a hike to the Hut( 3 hrs?) but then no more than 1 hr to the crags from there.
Castle hill is great. Do the Cave while you are there.
Some people say NZ dosn't have quality climbing, but I suspect they didn't get far from the main road.
Rope wise I would recommend checking Guide books. I was told I'd only need a single rope to climb at Frog butress Australia on the internet, but actually the best climbs are 40 odd meters!
If you were to Climb in Queenstown you will need a 60m or doubles. If you want any more info On the Queenstown/ wanaka/ Milford area you can message me.
Queenstownclimbing.com, alpineclub.org.nz, Mojozone are the sites I use
Not really Cool to camp in a farmers paddock without asking, despite what Graham said. Having said that so long as you have a shovel or Chemical toilet most would be obliging