hey im a newzealnder, in auckland there are alot of shops including atwaters music shop, theyve got everything. theres also the Rockshop which is right by the auckland hospital.
just came back from there....quite impressed with their music store at ATWATERS....though did not try their services cause prices are pretty high...there..
But if find something rare there..I may get it...exchange rate is good...
I also been to one at Taupo...just a small shop...along Tamamutu Road, if I did not remember the road wrongly..hehe