Hi Peebee - let me say that I find it very inspiring to study other 343s while I am currently building my own. I have a question about your setup - you say that you use foam to prevent heated air from the case to be sucked through the PA 120.3 in the front panel. What about the radiator in the top panel then? That is where the hot air would naturally end up - rising to the top. Have you thought of any measures to optimize the conditions for that radiator too?
I have a HW Labs GT Pro III in the front and a Nexxos II to be placed in the top with the radiator plate (optional item - not yet delivered).