For the PC, this is the cleanest ~ quickest TTS(text to speech) option I've come up with.
  1) Download and extract the .exe files from this Zip
       (to the same folder):  
       
CopyPlayTTS.zip
  2) Drag the 'CopyPlayTTS.EXE' to your quick launch.  
  3) Highlight some text in any (most) applications
| 4) Click the 
 |  
 | button in your quicklaunch 
 | 
 Notes: 
{Escape} stops the speaking text.
The .exe files are compiled AutoIt scripts.
You can save them anywhere-just as long as 
they're in the same folder.
Example use of CopyPlayTTS: 
 Example use of CopyPlayTTS 2 : CopyPlayTTS makes text file ~ stores in 'My Documents'...
Example use of CopyPlayTTS 2 : CopyPlayTTS makes text file ~ stores in 'My Documents'...