You can get some pretty good craft beers at the super markets also. Places like New World, Countdown and Pack n Save generally stock a few decent beers along with the not so decent. Pretty pricey though, but if you've come all the way to Wellington, I guess price isn't really an issue.
I'm an Australian living in Wellington, PM if you need anything. Craftbrew orientated bars are: Hashigo Zake, Malthouse, Goldings FD, Little Beer Quarter, The Hop Garden.
Last night was good, was good to see the boys from Mountain Goat (Dave and Cam) there serving beers, and not some representative on their behalf. Just got a phone call from the Blackrock crew, my Simcoe Stout took out 2nd place in the Beervana homebrew comp. So Stoked! For what its worth, this beer was made with no-chill, no O2 and dry yeast which wasn't rehydrated!