I have an idea for DisplayFusion:
I often would like to force windows to shutdown the displays, i.e., what happens if you are inactive and power management takes affect.
Screensaver control can do this ( http://www.ampsoft.net/utilities/ScreenSaverControl.php ), but it does much more than I need, and is quite bloated.
Wizmo is a very slim utility (~40k, no install) that does this and a number of other things.
Check it out at grc.com (http://www.grc.com/wizmo/wizmo.htm).
It sounds like there are already a few good free options, and I think it is a bit out of the scope of DisplayFusion right now. I'd love to hear what you end up using though, for future reference.
The ping command simply adds a 2 second delay, which allows you to stop touching the keyboard/mouse before the display kills itself. Otherwise it's too easy to accidently undo the nircmd command.
Hope that helps
Billy3
EDIT:
If you're still interested in adding this:
http://www.nirsoft.net/cmp/nircmd.html
may be a good place to start.