A quick note:
When I talked earlier about turning off warnings in Perl, I referenced the perldiag page. If you wish to see a list of all the perl… documentation available, you can look at the language reference at perldoc.perl.org (there is also a 5.8.8 version if you haven’t upgraded yet, although the differences should be too big between the two). Most of them are a very informative read, although you can leave some of them out if you are not interested in doing special things (for example if you don’t wish to use C code from Perl, you can leave out the perlxs page).