The video card rad pushes air out of the case because I did not want extra heat inside. I figured that if the case could pull in air from the bottom fan, it should get enough from the bottom for this(I have tape on the back of the case so the air can not run in a circle, but heat rises so it may not be needed).
Since removing the shim and filing the stock vrm/ram plate the temperatures are lower so air in may not have been too bad, but I would still need a filter on the out side. This way I get to use the stock floor filter on the case.
It is quite interesting to install or remove the card. This takes some getting used to since I used to just swap in and out cards for testing(excuse to build a "test" system
The cpu fan is actually just a single fan and an old fan with the motor cut out of it on top and the NF P14(to keep some air flow over the VRM area without the noise of a smaller fan) on the bottom does not add more than a few degrees at most to the cooling(my cpu is not clocked that high so even a single fan was enough for it). In my testing my H80i only ran an average of 3 degrees hotter with a single fan(the test was with NF P12s).
My media center is more crammed than this, but I almost never have to open it.