Extremely nice product. I have a wireless keyboard with no caps lock or numlock indicators. I use the CAPS Warn audio "pop" sound to alert me when I have pressed either key, plus a brief screen flash, and also the indicator in the menubar. I like best the other indicator that is supposed to be next to the Apple logo except that it is not reliable in Leopard. There are 2 problems with it. (1) half the time it appears at mid-screen on the left side rather than in the menubar and (2) I use 6 Spaces (a Leopard feature) and it only shows up when System Preferences is open and then only in the same Space as System Preferences; it doesn't appear in the other 5 Spaces. However, the other method (the menubar icon) works just fine.