I'd go farther than "not necessarily exclusive" and say that 
mastering technical competence is a pre-requisite to becoming an
artist.  I think techinical competence is the easier part to aquire.
Of course you can luck out and get the technique correct, but not
consistently (an generally dull but expert technician can also "luck
out" and have a superb artistic inspiration).
A masterful artistic vision that is marred by terrible technique is a 
real shame in my opinion.  Remeber the Cartier-Bresson thread (was 
that here or in rec.photo somewhere?) that discussed whether that was 
the case or not.
Sandor Mathe  -- sandor.mathe@prior.ca
(905) 670-1225 x333  --  FAX (905) 670-1344