http://www.macnn.com/articles/07/07/17/keyboard.maestro.21/
Keyboard Maestro 2.1 comes to Intel Macs
updated 10:50 am EDT, Tue July 17, 2007
Keyboard Maestro 2.1
Stairways Software has released Keyboard Maestro 2.1, a new Universal Binary version of its productivity enhancer for Mac OS X. Keyboard Maestro's macros enable users to control applications, windows, and menus; insert text; open documents, applications, and URLs; execute scripts; and control the system, iTunes, or a PowerMate. A Program Switcher lets users cycle through and work with applications as well as windows, which aids in regaining control of a crowded screen. A Clipboard Switcher lets users select from a number of named clipboards that store information for later retrieval, and the application enables users to keep the floating palette on the screen. Keyboard Maestro 2.1 is priced at $20 and requires Mac OS X 10.2 or later.
Mac Elite
Joined: Mar 2001
No longer free
I used the free version on my PPC Macs and liked it, but apparently there's no free version anymore.