Does anyone use or recommend an IDE for Perl?

I have two reasons for asking.

The first is that although *nix environments provide excellent tools for development, it is entirely possible that an IDE might exist that might actually be useful, though scoffed at by the hardcore.

The second reason is that while I am lucky(?) enough to be developing under HP-UX right now, my next contract might have me saddled with NT or Win2K environments. I know of the existence of PerlBuilder and Perl Magic -- would it make my life easier to demand from a client the purchase of an IDE if I have to develop under Windows?