For more editor choices than you can shake a stick at, see Code Editors and Development Environments. But still I think that bm underscored the value in learning your existing editor better.

However you're right that this will not help you with Dreamweaver. And from experience I can tell you that editing your text with a small Perl utility will work, and gives you lots of opportunity to learn Perl better. Whether or not this is more useful to you than learning editors in general is a judgement call.