I put the exhaust fans in tonight. I wanted a neat wiring job, so here is how I went about it.
First step, take two 80mm LED fans. They had 3 wire small plugs on them:
I peeled off the stickers, then with the soldering iron out, I removed the yellow wire as I wasn't using the fan speed monitor:
Next I trimmed down the red and black wire and soldered them together, then soldered on a longer set of wires to hook them up to power:
At the other end of the wires I soldered on a molex plug that had the 12v wires sticking out. It's the easiest way to hook it up, but not waste a plug from the PSU:
And here they are installed in the case with a pic with and without the flash:









