On Windows, every dialog box includes underlined letters that you can activate using the Alt key. I use these "Alt" keyboard shortcuts all the time; I'm missing them as I'm trying to switch to OSX.

On OSX, all I can find is Tab navigation, which requires you to press Tab seven or eight times to get anywhere in most dialog boxes. (And even that is hidden by default: you have to enable "Full keyboard access" in the "Keyboard & Mouse" control panel to be able to Tab between buttons.)

Is there some way I can get something like the Windows Alt accelerators for OSX dialogs? I'm willing to write Automator code, download/purchase software, etc.

Specifically, I'm imagining maybe something where you do some shortcut command and then start typing the name of the button, and hit Enter to push the button...?