Actually wouldn't it be enugh to simply say something like
\ifpdf \RequirePackage{epstopdf}...
in the graphics.cfg distributed with tex-live or other systems that have
write18 turned on by default?
David
________________________________________________________________________
The Numerical Algorithms Group Ltd is a company registered in England
and Wales with company number 1249803. The registered office is:
Wilkinson House, Jordan Hill Road, Oxford OX2 8DR, United Kingdom.
This e-mail has been scanned for all viruses by Star. The service is
powered by MessageLabs.
________________________________________________________________________