Originally Posted by Thumper
Ok, so let's see which would be better.....
This one with the 250mm side fan but no window
THIS with a window and mounts for 2 120mm fans on the side, making a total of 240mm of fan possible.......making them very close.
The ExtremeEngine has aluminum front doors while the AeroEngineII has plastic (which is odd as they look identical and appear to use the same frame), so that's a bonus.
However, even modding the ExtrmeEngine to use a window (not that hard really) you still have a one of a kind fan that you can't replace with a LED model for better looks.