I believe the D910i might be the best of the 2 models to import.
Based on what I've checked online I believe it should be compatable with Telecom (3G, parts of the network) and Vodafone and 2degrees.
Can you guys check out the frequencies to confirm or deny what I believe.
I use 2degrees atm but my phone quite often is out of signal around parts of my home (I live towards the back of karori) and even more often when I walk on tracks up to Wrights Hill or through the skyline walkway which are both nearby. Therefore which model and/or networks would you suggest to give me better signal and/or beter value?