FreeHotKeys for Mac

From Ricardo Batista:

So you have a few programs open, and their windows are getting in the way. You know which application you need but don't want to have to wait for the Dock to show up and then have to find an icon in that long list of icons...
You press the magic key and the application comes up to the front. Without having to look for a small piece of a window that you can recognize among all those windows. Without having to wait for the Dock and look for an icon there. You know the name of the application you want... just press the key and it comes to the front. With some key combinations you can run scripts instead.
FreeHotKeys makes your life simple, you press a hot key with the first letter of the application name you are thinking of, and FreeHotKeys brings that application to the front. Very simple, and natural. You know what you want already, you don't need to search for it anywhere.
You want Internet Explorer? Press option-command-i, Mail? option-command-m, the Finder? option-command-f