March Musings
Message passing.
Investigate 0mq as a light(er-) weight alternative to rabbitmq.
Configuration Management
Slaughter. It's pure Perl so there's no new microlanguage to learn.
A Perl Web framework
http://mojolicio.us/ looks worthy of exploring.
Perlbrew
I was amazed at how well perlbrew works for maintaining user-specific copies of Perl. No more worrying that a system upgrade will break your application... no more problems with different versions of a module between users.