These guys are legit, I've ordered from them, good electronics surplus store.
As for the fan's, the panaflo's won't come with the standard connectors, so you'll have to mod them slightly, or at a 3-4 pin adapter, or make a 3pin connector. All of which isn't too hard, just hook red -> red and black-> black on a 3-4pin connector
3->4 pin connectors can be found
here at svcompucycle (I've purchased from them many times before, all with great results and good customer service)
Now that I've checked there, I see that they're a store that has gone the extra mile and put on a 3 pin connector to the panaflo for you
Its
here for 6.99 + ship.
They have a bunch of other fan's that compare to the higher output panaflo's as well
here
Happy fan shopping!