Sleep Display... Leopard has a limitation that the only way to sleep a display is with a hot corner. So, when run, this small application will sleep your display instantly. Ideal for iMacs which have no display off button.
MACCANUCK Simple and does what it says it's suppose to do, on an iMac G5 2.1GHz running 10.5. Great when you want to listen to music and want your screen off. I use 'Butler' to launch it via hotkey (Version 1.0)