I could do the same thing right now for refridgeration.
Should be able to find one anywhere they sell electronic components... Radioshack, etc. The reason you want an AC fan (rather than a DC fan like the ones for computers) is because you can wire it just like flexwatt; use an old extension cord with the female end cut off and wire it right to the fan. If you use a DC fan you need an adaptor. Shouldn't be that hard to find a DC fan and an adaptor, but I think it will be simpler and cheaper to just find an AC fan. I have to do the same thing in the next couple weeks! Good luck![]()