Hey, OnyxGuide,
Nice setup. 
Very detailed information on how you deal with emergency situation for your fish.
May I also add that one of the the water conditioners I use - Prime, has the function of detoxify ammonia and nitrite up to 48 hours? It is very useful for short term ammonia build up.
My most worry is the filter system. Beneficial bacteria will start to expire after 24 hours if without a source of ammonia. Since I am using a canister filter for my main aquarium, it is not easy to just take it apart and sink the filter media in the tank water.
What we need for emergency such as power outage is a power generator. 
I live on the border with Canada, which means it is a very cold place. If the power outage take place for more than a few hours, then I would worry the safety of my tropical fish already. It actually happened once for only 1 hour during the winter of 2010, and it worried me to death lol.
Goldfish are easier to take care of in the case of emergency. Tropical fish are more of a pain on the back to deal with if you are not living in a warm place. (moving to Florida might help haha. It was in the middle 70F on 1/1 when I visited Disney a few years ago).
It is just so much easier to take care of dogs and cats in case of emergency.
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