also pc uses ppm for repo modules etc, there seems be no quick and painless way to get a mirror installation of same modules on OSX or linux. does anyhave a script? or code? dump out modules list and feed that into something that grabs and installs from CPAN?

See the "autobundle" command of App::CPAN. With it, you can create a list of all installed modules, edit it, and install it again on another Perl installation.

Personally, I recommend maintaining a Makefile.PL instead, which lists the prerequisites of your application. This makes it much, much easier to reinstall Perl on the same machine or to install the application (and especially all its prerequisites) on another machine. Module::Install is an easy-to-use way to write your Makefile.PL.