i found some additional information and urls, so i decided to post them here

tutorial on how to use the perl openGL modules
google groups on perl+openGL
perl on the openGL site
perlTK newsgroup

some other nice thing might be GGI and Perl, as there is a perl wrapper for GGI as listed on the links site there.
and another piece of software, which i use, but which is totally non-perl (but would be nice to create a perl extension for that):
pure data/ gem