Here is a pic of my Storm Scout with a S-FLEX SFF21F attached to the outside. I paid for a case with two side fan locations and was determined to use them regardless of looks.
The location of the fan was too good to pass up. It directly blows air on my CPU cooler, graphics card, northbridge, and RAM. Effects of mounting the fan:
-2Â°C load on the processor.
+ 200MHz on Prime95 stable northbridge overclock
+ 100MHz on Prime95 stable RAM overclock
-5Â°C load on the graphics card
-2Â°C motherboard temp
-3Â°C hard drive temp. I don't know how but I'll take it.
+ no noise increase over the other side intake fan.
The cable management is more effective than it appears in the picture. The visible cables are pressed against the window out of the way of airflow. My desk blocks the window so I used it just like the other side panel.