Thanks for posting that. I love to see how other folks understand their systems and install them.
The dirst thing I went for after the batteries was an inverter. I got a cheap one from eBay to experiment with, as the Aussie prices for good units are prohibitive. I got a 2000W (peak 4000W) unit for $60AUD and it hasnt failed yet.

I'm looking forward to anything else you may post on the topic.