Is there an equivalent to copernic pro desktop search engine available for mac? Is there an equivalent  to copernic pro desktop search engine available for mac? I mean something serious not spotlight or found! Something that is able to search terabytes of data and index millions of keywords and search inside pdfs and all sorts of data. I have searched and so far haven't found anything as good as copernic pro for mac.
Two that come to mind are :

EasyFind -- which is in the Mac App store 

and

Docfetcher which is a java application

http://docfetcher.sourceforge.net/en/index.html