Hey! The death dog was officially updated for 3e in the Fiend Folio. :)
There's also a "dracolisk" (fiendish half-dragon half-basilisk) in the web enhancement for City of the Spider Queen (http://www.wizards.com/default.asp?x=dnd/we/20020907a), because The Lost Caverns of Tsojcanth was one of my favorite 1st-edition modules.
Love the strip, Rich.
James Wyatt