Useful Links

Softrock: Arthur's Pass Mountaineering - great site for weather and conditions!
Arthur's Pass Climbing Guide
Alpine Recreation - guding and trekking
New Zealand Alpine Club
New Zealand Climbing Area Guides
Powerband: bouldering in New Zealand
Federated Mountain Clubs
Massey University Alpine Club
Women Climbing
New Zealand Sportclimbing Federation
New Zealand Mountain Guides Association
New Zealand Outdoor Instructors' Association
The Roxx - Indoor Rockclimbing Facility
Southern Alps Guiding
South Island Climbing
Sun, Rock, Ice
Vertical Resources - Conditions, Expeditions, Tips and Information - French huts/discount

Mountain Safety Agencies

Arthurs Pass Mountaineering Conditions (softrock again)
MetVUW NZ Weather 
Mountain Radio Service
New Zealand Land Search And Rescue
New Zealand Mountain Safety Council
South Island snow stability information 

Weather forecasts

Brief area forecasts, including mountain forecasts (Metservice) Bill Atkinson, Mountain Guide at a selection of links, including animated six-day forecasts showing precipitation and pressure. A recent addition is a link called "Wx calculators" to the Australian Bureau of Meteorology's conversion calculators for temperature, pressure, wind and rainfall. This is a quick way to convert Fahrenheit readings to Celsius, or knots to miles/hr, km/hr, etc. This is also an onward link to a calculator for the value of relative humidity.