I'm using Emacs (on Unix, but is also available for Windows) for practically all my programming. The CPerl mode is very good, does syntax highlighting, auto-indentation, integrated debugging, etc, etc. It's not the easiest editor to learn, but definitely one of the more powerful.

A good editor won't solve your problem of making syntax errors. Syntax highlighting can help, but in the end, you'll have to get experienced enough to not make them anymore :-)

Arjen