Since you refer to using Komodo on Windows, I think what you are asking for is not simply a Perl editor, but a Perl ide (which is what Komodo really is). If this is the case, then you might want to look at PerlEdit. However, don't expect it to be as good as Komodo.

You say you want free, and that may be a necessary requirement, but if you can spare $29.95 and you meet the requirements, you should take a look at Komodo 2.5 Personal Edition.

davidj