Thank you for your reply! The information on fellows at the discovery.org website does not indicate religious affiliations, so I'll need to research this further, but I do want to give you what I found on first blush.
First is an article from the materialist side: At the Intersection of "Metaphysical Naturalism" and "Intelligent Design"
If naturalism has a true antonym, it is supernaturalism: the belief that some sort of "higher power" has the ability to create, destroy, ignore, or break the physical laws of nature "at will." The essence of my assertions herein is that "intelligent design" can occur without violating the bedrock principles of "metaphysical naturalism." In other words, you can have our universe be the product of "intelligent design" and yet never require any supernatural phenomena to effect the "intelligent design" of our universe.
And here's another from The Religious Tolerance side
Proponents of ID have a wide range of theological and philosophical beliefs. Persons with all of the following beliefs could embrace ID:
A monotheist (e.g. a Jew or Muslim who believes in one God).
A duotheist (e.g. a Wiccan or Zoroastrian who believes in two deities).
A trinitarian (e.g. a Christian who believes in three divine personality within the unity of a single godhead).
A polytheist (e.g. a Hindu who believes in many Gods and Goddesses).
A Deist who believes that God created the universe, set it in motion, left, and has not been seen since.
An Atheist, Agnostic or Humanist who holds open the possibility of a very advanced species of intelligent beings existing in the universe.