I've added The Solar Shop to the address list, they seem to have a comprehensive range of alternative power products. Please support my efforts and let them know that you found them through my zencookbook site, then they may be tempted to sponsor me in my research! hehehe nothing like networking...
I've looked at the site, and the O'Connor shop apparently will be opening as a shopfront very soon now, so stay tuned. Goodies on the site include solar regulators and electric scooters, wind turbines, and - grid-connect aware hardware. That is the payoff, that you can sell your surplus back to the electric utility and actually recoup a portion of the installation cost.
The Solar Shop look like they've installed a few decent sized projects and you might do a lot worse here in Perth for your alternative power installation. And once I develop one of my ideas in particular a bit more and start producing it, you'll find that with my device installed your installation will develop even more power than quoted, and I'm betting that The Solar Shop will be one of the cutting edge who will start providing this as a standard part of their future installations, allowing you to make a smaller installation do more. This really is a killer idea, and it can be added to most installations at any stage, including installations that have been up for years.
I'm also still looking for anyone wishing to contribute to the development effort, if you know anyone who might be able to assist in any way please direct them to this page.