Find and Replace in Finder?

Would it kill Apple to add a find and replace function in the finder, so that I can select multiple files and replace or append the texts? I waste considerable time renaming files in finder to fit my filing system. Things like dashes between letters instead of spaces for example cost me a lot of time where I have to remove the dashes one by one or copy and paste portions of texts from other files.

Or maybe some of you know a way to accomplish this? A script maybe?