The room temp is supposed to be the same as outside temps, about 26ºC (right now) I think. I don't OC, everything is at stock clocks, the case is a cheap generic but I think is based in this model http://www.newegg.com/Product/Product.aspx?Item=N82E16811133046
but without that front door, it haves an 80mm front fan as intake (in front of hdds), a 120mm side fan, the rear fan is 80mm as exhaust, also a place for top fan.
Ok I'm trying this, the side fan was exhaust now is intake trowing air into GPU fan, added an old generic fan in top as exhaust (80mm), right now (idle):
GPU Core: 40ºC
CPU Cores: 37ºC
I'll post gaming temps...