Well, I've dallied a few times with Perl (and perl-esque languages like PHP), so I knew a bit about the weirdness of syntax and the wide-spread evangelism. But I must say that getting this project at Interapy has made me a quick Perl afficinado.
I Like it.
I am slowly getting drawn into the elegance of the whole language and the object-oriented approach used with it.
Mind you, I'm not nearly close to being at a comfortable level yet, in fact, I have been out of practise for a few months, so my whole attention right now is bent on getting back in swing again with my programming in general.
Wish me luck!
If you haven't already picked up "Learning Perl" and "Programming Perl" (both in 3rd edition I think), pick them up now. Read "Learning Perl" cover to cover. Use "Programming Perl" (i.e. the Camel book) as a reference and/or read sections relevant to what you do.
Other worthwhile books to consider after you've finished "Learning Perl":
Though, what you should start with will largely be driven by what your job requires (cgi, mod_perl, socket programming, dbi, etc)
Also, do yourself a favor and learn how to use the debugger early. Look for Devel::ptkdb at "search.cpan.org". Oh, and if you've never heard of CPAN, go and take a look (www.cpan.org or search.cpan.org if you want to peruse the modules).