Hehe, youve got a lot of reading to do!! Have a look at the top thread 'aus/nz work pool', its full of everything you need to know.
Basically I guess you will have to decide on whether you want North or South island....whether you will have a car to get around and if you want to sight see, or if you want to stick in one place!
I guess most people here would suggest the south island to you as there are more resorts/variety etc
Here in the North you have Turoa and Whakapapa as the main two with smaller ones that are probably a bit challenging for newbies.
If I had lots of dosh, I'd do the south island, only because I havnt managed to get down there yet! And Queenstown/Wanaka has an awesome vibe. Theyve just spent a lot of money on some of those resorts.
But my soft spot is Ruapehu, cos thats where I live!!!
If you do come this way, drop me a message as it would be cool to meet up!
Di