Here is a diagram of what my current chassis fan setup looks like...

I was just wondering if my current setup is fine and if I should add another fan on the side near the GPU (the bold circle in the diagram shows the location). If so, should this fan push air in or pull air out? My GPU (Asus GTX 670 CUII 2GB) hits a max of 72C while gaming and I would like to reduce this by at least 5C.

I was just wondering if my current setup is fine and if I should add another fan on the side near the GPU (the bold circle in the diagram shows the location). If so, should this fan push air in or pull air out? My GPU (Asus GTX 670 CUII 2GB) hits a max of 72C while gaming and I would like to reduce this by at least 5C.