Intake:
2x80mm fans (one blowing over both HDs, but at an intake port)
@ approx 62 cfm
Exhaust:
2x80mm fans
@approx 60 cfm
So, I should get a total flow of about 60cf of fresh cool air blowing completely through the case every minute. In theory. Intake's are at the bottom front of the case, exhaust are at the mid/top rear. Oh...I also have the PSU fan, but I have no idea how much air that moves, and it's not really cooling the case, just the PSU.