Adding a new fan to my case

[SuxoR]

I was interested in adding a new fan, thinking about getting a new video card and had some heat concerns.

This is my case and it's really small :/
Does anyone have any suggestions on where to add a new fan? This things cramped
Current Speed Fan Temps:Temp1-40c, Temp2-45c ,Temp3-23c,Core 35c

Not sure what the temp1, 2, and 3 are but heh everything is green checked

My Case

 

[philbar71]

usually you should put a 120mm at the back. but what and where are the fan holes at on your case?

 

[SuxoR]

If you scroll down to the bottom you can see the back in detail

Where would I add the fan?

 

[philbar71]

by the looks of it I'd say you've already got a 80mm in the back so i would look around in the front to see if you can put another 80mm in the front. also that case it quite small i would recommend getting at lest a mid tower.