Dont forget (or perhaps you don't know if you didn't read the newsgroup threads). There was SEWAGE in that crap in those pictures.
No way do you even attempt to salvage ANYTHING porous (wood or other materials) if it has sewage on it. There are some serious disease causing viruses and bacteria there. Not to gross people out but there have been posts in this thread about people with even simple basement sewage backup due to huge rains and having USED condoms floating in the crap.
This is why insurance companies are more than willing to write off everything at a complete loss and *demand* it be immediately destroyed, or in the case of home basements, everything down to the concrete or green treat 2x4's removed and destroyed and then pay for intense chemical cleaning and disinfection.
Even if this was a super rare Computer Space or Discs of Tron or Major Havoc game floating in that crap, I would not accept ANY PART of it, no matter how 'clean' it was.
Once you throw out the expanding plywood, MDF or particle board, anything metal has already been compromized by being in sewage/rainwater for more than a few minutes. It's already rusting now waiting for the insurance adjusters (which require nothing to be touched before assessing as was posted by the owner of these).
About the only thing that could be spared would be non-painted glass and highly glossy plastic parts that both can be blasted with chlorine and other chemicals to disinfect and clean. But anything with paint, porous plastic, wood, metal, fiberglass is totally and completely shot.
But yes.. people need to be watching for damaged stuff for the next year or so from the east coast.
Sad as it is, but back in 1997 with the huge flood in upper minnesota / dakotas around here, a couple larger cities (~90,000 people in largest two) suffered so much sewer and flood damage that you had to be careful buying used cars, even from dealers, for a couple years as they were being pawned off to make a quick buck. Insurers required separate inspection of vehicles and tracing of VINs to ensure they wern't in the floods.