Baz, You should have no problems growing Neos in NZ. They are well suited a wide variety of climates, and if you are successfully growing Masdies, your Neo will love it!
The only thing to keep in mind is that they really, really like air around their roots (they are related to Vandas after all!). They are traditionally grown in NZ Sphag, so you have an advantage there too!
There is loads of information in the threads of our newest section of Orchid Board - all about Neofinetia and its hybrids. Have a browse through the info there:
http://www.orchidboard.com/community...ce-neofinetia/
And if you have any other questions, feel free to ask!!
Enjoy your Neo! And remember, its no good having just one!!