This is another reason why it's good to live in Wellington:

Yet More Speed for TelstraClear Internet Customers
The company will offer customers speeds of up to 25 Mbps downstream by the end of the year. This is an increase on the company’s fastest existing plan which offers speeds of up to 10 Mbps.
http://www.telstraclear.co.nz/companyinfo/media_release_detail.cfm?newsid=275

TelstraClear is already the fastest and most reliable home broadband in New Zealand, and they're getting faster. It's a pity that their cable network is only available in parts of Wellington and Christchurch, and that they only have 30,000ish cable modem customers.

When we bought a new house, one of the criteria for choosing which street and suburb to live in was whether we could get TelstraClear cable. I'm glad we persisted with that now -- even though it meant many phone calls to TelstraClear asking if addresses had cable coverage.