Nestoj, congratulations on the job offer! 

  Whereabouts in the country are you moving to?  Housing  and living costs vary considerably, depending upon where in New Zealand you live - Auckland, Wellington, Christchurch and Queenstown are the most expensive places.  It can be hard finding good rentals in Christchurch, due to housing shortages resulting from the earthquakes two years ago.   I think the economy is starting to look up slightly, but don't know anything about the software industry.  
Let me know if there is any specific information you'd like about NZ.  I can also help with local Orthodox Church and Christian contacts.
Congrats again.  New Zealand is a wonderful country and I'm sure you'll enjoy living here. 
Deborah