http://www.company-solutions.co.nz/
Extensive range of incorporation options in New Zealand including various forms of trusts, trading trusts, family trusts, offshore trusts, etc.
http://www.amico-newzealand.com/
Basic looking web site offering company formations in New Zealand for $297 or $997 for overseas residents (including registered office, mail forwarding, etc).
http://www.registeracompany.co.nz/
NZ company registration service, prices from $309 NZD. No strong focus on offshore individuals.
http://www.registeracompany.co.nz/servicesandfees.cfm
New Zealand company incorporation service. $349 full package.