New Zealand Carnivorous Plant Society - National Body:

http://www.math.auckland.ac.nz/~waldron/NZCPS/

Information on New Zealand Carnivorous Plants:

http://www.nzcp.50megs.com/

Other Carnivorous Plant Societies: 

The International Carnivorous Plant Society: http://www.carnivorousplants.org/

The Victorian CP Society (Australia): http://www.vcps.au.com/

Carnivorous Plant Retailers in the Christchurch Area:

Carnivorous Plant Nurseries:  http://carnivorous.netfirms.com/nursery.htm

Other Carnivorous Plant Retailers (that ship internationally):

Triffid Park (Australia): http://www.triffidpark.com.au/