At the end of the day no matter how many fans you have, if their blowing warmish air its pointless but a loud noise. The only way fans will work is if your room temp is 74F , Anything higher then its pointless. You make things worse actually. I live in Los Angeles valley area and my room gets to 90F in no time even today. I have a AC coming form outside the wall, a true AC soo that keeps my room @ 74F , Gotta always be on though or my RAD which is inside the case will warm up soo will everything else. LOL I got the case open now, But if I close it I just have 2 92mm holes which are open since my fans died. But they were 3dcool and sunon fans, Way to loud. I have a Denon 200CFM 120mm monster. However that thing is soo loud I swear it must be 80db as I used that once to change the stock RAD fan. I saw a difference in about 6c degrees or so, it's totally is not worth it.
Silence is Golden. I just need two 92mm fans for side of case. Blue LED and very low noise,, like 2000rpm ish but barely hearable. I think that would help with closed case.
However the bottom fan I usually put as exhaust. Since I have one exhaust fan on the top of case. and the exhaust under VC, Thats it, the RAD is placed right against the metal on the front of the case LOL ,, I just wanna make sure mobo and memory is cool. Overall the system gets hot like hell without AC. Awww can't wait for winter LOL ,,, My window is always wide open BTW,, man Im bloggin Im soo sorry.. good thread!!!