in reply to my first module

I always use h2xs to generate my module templates. It comes with perl and is easy to use. The module templates it builds have all the necessary pieces in-place so you don't have to worry about doing it yourself; all you have to do is drop in your code. Also, the templates produced by h2xs are all ready for a CPAN style "perl Makefile.PL/make/make test/make install" install (supports "make tardist" for building distributable bundles too):
% h2xs -A -X -n Foo::DoIt