I also made a modification to the truck so that I could get all of the gasoline out of the tank (safely) to run the generator. The truck has a 32 gallon tank, so in the event of a power hit, I knew I always had at least 15 gallons of fuel on hand, and probably more.
We also had (and Trill still has, until I move it, if I do) the solar power system with batteries more than 1000 amp hours at 12 volts to run the 1.5KVA inverter.
The panels are undersized, but I can run the generator to charge the batteries for a short amount of time, and still have long-term continuous power. The system cost me about $3.5K to put together.
I have an entire notebook of information that I put together in 1999 about each appliances current draw and power factor. I also had an energy budget worked out that we tested repeatedly in differing scenarios.
/john
It's the first acid test of our disaster preparedness plan since my wife and I have been together. I'm happy to say I think it went pretty darned well, all things considered!
 [BTW - Interestingly, we never did reach into the supply of bottled water we had on hand!]