There's already someone running a database, but of course it all depends on the site staying around -

http://aussiepinball.com/index.php?topic=5548.0

Should we start a new one, or add to the existing?

Yeah I know, but I'm a big fan of the open source style of free ware cooperative non commercial approach so let's see how the Wiki  goes. Maybe it drifts into oblivion but it already has content that the other site doesn't have!  I'm also sure sites like IPDB, KLOV started small!

I looked at the pinball wiki thing today and so much of the info on it is so wrong ...

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At least on Aussie Pinball, we have enthusiasts/ourselves who do check facts before posting 99 percent of the time, and we can keep the info real. 

Cavey, the idea of a Wiki is that it's a living document that users edit.  On each page there is an edit button - just click and correct away. Set the record right on those heinous errors that make you angry 

AP members can keep the info real on the wiki if they wish. With something like a ring list it is more public and hopefully a wider community will contribute.