Creating a lightweight OS X 10.3 screen reader

The trick is to assign a keyboard shortcut to the OS X 10.3 (or 10.4) speech service. Now when I highlight a work and type Option-S in Safari, OS X speaks it. Even works on my old iBook running 10.3. Of course Tiger users might try VoiceOver, but it's pretty heavy duty. The method for keyboard assignment is pretty kludgy, but easy after you do one.