Hey, I have a xion solaris case, and the airflow is pretty horrible. I'm trying to make it better by adding a 120mm fan to the top of the case to let air out. I have one 80mm fan at the bottom front of the case, an 80mm at the side and an 80mm in the back. Theres also a pci fan at the bottom of my case, but it doesnt let any air out (just moves it around). If I install the fan at the top, would it make my airflow better? Can you guys tell me the pros and cons?