Hi At,

Dragon Naturally Speaking is supposed to be one of the best in that field.
There is also  Tazti  http://www.tazti.com/

You didn't mention the OS he's using ,but Win7 has speech recognition built 
in.
http://windows.microsoft.com/en-US/windows7/What-can-I-do-with-Speech-Recognition
Internet browser Opera has voice controlled browsing (if enabled).
http://www.opera.com/browser/tutorials/voice/

For XP there's  http://www.e-speaking.com/
Office XP has speech recognition
 How To Use Speech Recognition in Windows XP
http://support.microsoft.com/kb/306901

Vista has built-in speech recognition as well.

Out of interest ,you may want to read this
Free Speech to Text Software?
http://instanthourglassbody.com/curvy-lady/free-speech-to-text-software

I'm afraid I only have limited experience with these programs,
but hope the above info is of some help.

Your friend's son will have to go through a lot of retraining ,both ,for 
using his left hand more effectively
as well as for using any of the speech to text programs.

A good quality microphone is also essential for for the STT programs.

Peter E.

--------------------------------------------------
From: "At Neethling"
Sent: Saturday, 09 July, 2011 10:54 AM
To: <[log in to unmask]>
Subject: [PCSOFT] Speech to text software

Hi all

I was asked by a son of one of my friends about Speech to Text software.
He has lost the use of his right arm, and being right handed, it makes
it difficult for him to use a keyboard. Can anyone suggest some software
he can use. I did a quick Google (search) and found Dragon Naturally
Speaking as one being recommended by some people. Any one on the list
with some experience of this, or other software.

Thanks for any help.

At Neethling
Cape Town

 

        The NOSPIN Group has added a new feature on our website,
           web based bulletinboard for questions and answers:
              Visit our sister website at http://nospin.com