I've written up a bit of a guide on installing network cabling in homes, drawn largely from advice posted by others here on geekzone, and my own experiences working on homes.
It doesn't include any photos or diagrams at this stage, but I may add these in later.
I've made it available through issuu.com using the link below - hopefully useful for someone!
https://issuu.com/froob/docs/installing_network_cabling_in_new_zealand_homes_v1