AFAIR the "clickToFront" commodity is included since OS 2.1. So there should be no need to go to Aminet for this. The aforementioned "Backdrop"-option is available via the Workbench-menu (first item) and can also be toggled by pressing Amiga-B. Turning off the backdrop option is especially useful when a large window is obscuring the drive-icon you want to get to.
You can choose "Snapshot" from the "Window"-menu to keep Workbench in Backdrop mode even after a reboot.
That being said you should perhaps configure "clickToFront" to only accept double clicking. This has the huge advantage that you are still able to operate windows in the background. This is especially handy if you are running Workbench in traditional resolutions (ie. not much screen real-estate).
