Singel is correct; NZ companies are always looking for people with recent NZ work experience. In my case it was quite hard to find a job because I'd been overseeing the building of our house for a few yrs and even though recent and NZ this kind of experience didn't count.
I found my first job (contracting Business analyst) via a friend and it took me about 2 days to get back into the swing of things. TBH I did expect it to take much longer, but work here is really not all that different to what I was used to so I'm not sure what all the companies are worried about.
After 5 months in that first job and the market being what it is I could pretty much choose my next job and for a much better salary than the recruiters initially thought possible.
Since I've joined this company a month ago, they've hired an Irish girl, a Filipino (Specially for you Annie!) and an Australian. All of these are fairly high level jobs and for a Government agency in central Wellington.
A month ago some friends came over from Holland to see if they would like to move here and be able to get a job here. He's in a faily specialised field of IT and got a job offer within a week, they're moving here next month.
So I guess the message is even though they prefer NZ work experience as long as you have recent experience you should be able to find a job relatively easily in the current market. Being Asian doesn't seem to make any difference (we have all kinds of nationalities where I work) and in general volunteer jobs are looked upon favourably.

Miep