Floating below applications.

I'd like the main window to float just above the desktop picture, but below Finder icons. I do not want the window floating above any application windows. I also don't want it clickable.

The idea is I want it to be always present during the day, so I can see it - but not be bothered with it. I dont want to have to remember to activate or deactivate it. I just want it there when I close an application's window.

I don't mind if this is a secret NSUserDefaults - in fact that would be perfect - because I could then experiment with the window level myself.