Got everything on the board; 200mm front intake, 200mm side intake, 200mm top exhaust and 120mm rear exhaust. The PSU is in it's normal orientation, intake at the bottom. Draws air outside the case and exhausts directly. 2 of the big ones have a LED as well (I know Jan, didn't get them for that, that's just how it came
). Plus a 120mm and 92mm on the CPU.
I doubt they would make case fans that exceed the power requirement a board connector can supply, to be honest it's the first time I've heard of such a possibility, but if you feel more comfortable using molex you might as well use that. (in other words, haven't got a clue if it matters
)
It creates some overpressure inside the case, which arguably helps keep out dust, but only the front intake is filtered so that's not really applicable in my case (pardon the pun).