new zealand - where to go?

hey all! my boyfriend and i are saving up for traveling in new zealand next year and i was just wondering if anyone had any tips for us?
he's an experienced surfer, but im still pretty new, so where are some spots that are good for both of us? any must see places? how much money would you recommend taking to last a few months? is it pretty easy to get hold of a camper van out there? best time of year to go? also, whats the best bet for which kind of board to take?
basically, any kind of info will be much appreciated!!
cheers x x
he's an experienced surfer, but im still pretty new, so where are some spots that are good for both of us? any must see places? how much money would you recommend taking to last a few months? is it pretty easy to get hold of a camper van out there? best time of year to go? also, whats the best bet for which kind of board to take?
basically, any kind of info will be much appreciated!!
cheers x x