CAD software?

From: David Roach (Nova Scotia Research Foundation)
To: RP-ML
Date: Wednesday, January 25, 1995
Subject: CAD software?
     I am presently looking at the design component of a product which may 
require some Rapid Prototyping.  My question is "what CAD software 
would be best to use so that it can easily be handed over for rapid 
prototyping, if required?"
     >From my understanding, 3D CAD files must be converted to "stl?" 
format for RP.  Are some CAD systems better than others?  Should 
files be created a certain way?  Does it make any difference?
     If this is not appropriate or too basic for the group, please e-mail 
me directly.
     Thanks...from an RP novice