I'm not a developer by trade, but do all my Perl coding - whatever little there is - on Windows, with Strawberry. I use Notepad++ with a bunch of plugins including DBGp which originally was just for PHP debugging, but I hacked to support Perl. It works nicely for my use cases, may be a bit buggy, but it is FREE.

You can find out more information here:

• Notepad++ Integrated Perl Debugging
• Notepad++ Perl Function List with "Classes"

UPDATE: pryrt beat me to it! Thanks for the plug.