hey samuel,

Deals are available all over NZ, in cities as well as smaller towns.

realenz.co.nz
has the deals and also the market rental stats
(free)
You can also buy region overviews and e-valuations (i.e. comparison sales in an area for the last 6 months to a year, all sorts,)
at qv.co.nz

The last two excellent deals I purchased myself have been through a local NZ spotter who knows the market backwards, and is there to grab the best deals and latest listings before they even make the web in many cases, this sort of thing is priceless in my opinion