In response to Gary Myers request for info on GUI interfaces
for GG, the recent issue of CABIOS (vol 10, number 3, June 1994)
has an article on a n openlook interface OLGCG. (Sammons and Dykes).
Scott Sammons is willing to distribute the software. He is at
bcresas at bimcore.emory.edu. It might be worth your while getting
in touch with him.
All the best
(I just read the article, I have no connnection with the authors etc)