[robg adds: This is a very unique and useful application. In limited testing this morning, the only potential downside I see is that it takes a bit of CPU power -- anywhere from 5% to 25% of my G4/733, depending on what I was switching to or from. But it's certainly interesting enough to merit a try out -- you can also choose between dimming non-active windows (the default) or non-active applications, and whether you want to use a dock icon, menu bar icon, or both to control the program.]

