www.catalyst270.co.nz is the webby
Its sposedly of the underground variety, but when you look at some of the gigs there you will find that it caters for a 'wide' audience. To put that into more detail, the club generally plays d'n'b, housey stuff, techno, breaks and ya hard house kinda vibes.
Soundsytem is ok, nice basement location, and a good bar. The upstairs part is pretty cool too.
I would also suggest checking liquid lounge if ya on a house buzz.
(actually if truth be known the soundsystem is old and crap and the red colour on the walls makes it look like a brothel!, or the inside of someones stomach)
But it would be one of the better clubs in hammy with a close 2nd being the Whitiora Camelia and Rhododendron Society, followed by the Hamilton and Surrounding Suburbs Philatelic Club.
But seriously worth a look