Well, I think I'm finished other than minor changes as I use it.
I ended up using the 3 pin adapters than came with the fans I orderd, it's the same style of adapter used on motherboards to connect to case fans and the processor fan (and they're easy to replace the wires in them).
I put the male end on the cooler and the female end on the two power sources I set up (one a USB cable and the other connects to the neat little variable voltage AC to DC converter I bought at Walmart for $8.
So I can either plug in the USB cable and use 5V directly out of my lappy or I can plug in the variable voltage AC adapter which plugs right into the wall and then I can use the little selector switch to choose between 4.5, 6, 7.5, 9, or 12 volts (it also allows 3 volts, but thats not enough to power the fans). So I've got 5 settings that work pretty well, very low, low, medium, high, and very high(full power to the fans).
I had a lot of fun designing and building this thing. I know people had mentioned before wanting a custom made one like this from Tijgert, so if anyone is still interested I'd definitely be willing to do it. The final cost for mine came to a little under $70, although I could cut that down some pretty easily:
Plexiglass - $10
Fans - $40
Spacers/Screws/Nuts - $7
Rubber Feet - $4
Variable Voltage Adapter - $8
I think you could probably find cheaper rubber feet, but I just picked some up at Walmart that would lift it about 3/4 of an inch off the desk to get high airflow.
The fans are obviously the most expensive part, the fans I found were 80x80x15 (as I couldn't find 10mm ones anywhere) and were $5.99 each plus tax and shipping. If you were willing to just use 80x80x25 standard size case fans I know you can get them for like $2 or less (in packs of 5 or 10)
So as Tijgert said quite a while ago, they aren't cheap (although mine was on the more expensive end since I was trying various things to see if they worked) but of course you're getting a custom made cooler for YOUR laptop with the fans where it needs them!