There have been a few threads about migrating to NZ (and Aus).
Maybe you might wanna read up on what others said there first.

IMO, going there for holiday is all fine and wonderful but not everyone can adapt to the lifestyle there. Besides, it's best if you can secure a job before leaving everything and going over.

https://forum.lowyat.net/index.php?showtopic=2319638&hl=
https://forum.lowyat.net/index.php?showtopic=2541957&hl=
https://forum.lowyat.net/index.php?showtopi...&hl=new+zealand

I don't know much about the application as I have no experience in that. There are some agents here on the forum, maybe you can get some info out of them. Or check NZ government website for more info. A little google-ing brought me to these websites:
http://www.newzealandnow.govt.nz/new-zeala...d-migrant-visas
http://www.immigration.co.nz/seminars/mala...CFedU4godfioAkA
http://www.immigration.govt.nz/migrant/str...ntialskills.htm

Good luck.