.co.nz domain - what's the best way to register one?

I'm need to redirect Web traffic (www.mikesdomain.co.nz) to a Blogger site (here's how) but will also want some sort of email boxes (accessible using Gmail - here's how) such as mike@mikedomain.co.nz.

Anyone guide me before I spend money ($34.95 + $49.95 + GST / year) with Freeparking

All and every advice gratefully received - leave a comment