The first Nerdnite in Auckland that I organised (a few weeks ago now) went, from my point of view, superbly well. The projector was a little fuzzy and the sound could have been a bit better, but everyone enjoyed themselves and we had way more people than expected turn up.
I've just gone and booked the venue for the 2nd Nerdnite. It's the same place, but I'll be getting a friend who specializes in this sort of thing to come look over the projector beforehand. The speakers haven't confirmed - though they have nominally said they are keen. Details will be on the website and the book of face when they confirm. Fingers crossed it all goes as well as last time.