Anyone posted anything bulky to New Zealand without it costing hundreds of pounds?

[AlwaysWatchingCastawayAt2am]

i need to send a parcel that will be about as big as a rucksack and weigh over 3kg, and I don't want it to take more than a couple of weeks. Any suggestions of companies to try would be gratefully received....

Parcelfarce do that don't they? Otherwise look at the student bag forwarding services (see the baa website for some names).