Peerless logo needed to politics portal Polity.com.au

We need a peerless logo designed for a site that will (hopefully) revolutionise the way us Aussies interact with our politicians.

Polity.com

Tagline:
A politically organised unit

Accepted File Formats:
Vector Formats (.eps, .pdf or .ai)

The site is called "Polity" or "Polity.com.au" and has a working tagline of "A politically organised unit"... but we're not so sure about that. It's (hopefully) going to provide a new way for Aussies to interact with their politicians through a range of online services. Go here for a definition of Polity: http://en.wikipedia.org/wiki/Polity
There are no required elements beyond the site name and tagline and it should probably work without the tagline (as we're still luke warm about this).
Other than this – the brief is completely open. We have no colour preferences (but the logo should work in black+white), font preferences or icon preferences (if it work without one that's fine.)
The target audience for this site is quite diverse but will most likely be younger aussie types who are internet savvy.
Feel free to email or PM me if you need any more information.