in reply to Perl mode for GNU Emacs
At the risk of starting a religious war, which really isn't
my intention here, I would recommend trying out XEmacs
(www.xemacs.org). It comes with cperl-mode as the
default Perl mode by default, and has several other, IMO,
improvements over GNU Emacs.
Aside from that, cperl-mode is good, better than perl-mode
in my experience, and according to cperl-mode.el is a part
GNU Emacs, so you should already have it. Have you tried
activating cperl-mode (M-x cperl-mode) in a buffer?
-- Mishka