Also, perl.com ran a two-part tutorial on using GTK-Perl, written by Simon Cozens. The URLs are http://www.perl.com/pub/2000/10/gnome.html and http://www.perl.com/pub/2000/11/gnome2.html. I've only personally gotten as far as the "Hello World" in the first part before getting distracted by other things, but it looks helpful.

There's more information about GTK at http://www.gtk.org. Note that the big drawback to using GTK is that there's no stable Win32 implementation yet, although work's being done on in over at http://user.sgic.fi/~tml/gimp/win32/.

-- Frag.