EasyFind is a powerful free search utility from Devon Technologies (makers of DEVONThink) which I think support staff and developers may find useful.

There is not a lot to say about EasyFind as it is so simple to use yet very powerful.
EasyFind’s key features are:-
- Search the entirety of a hard disk volume or other media.
- Select a specific folder or volume to search to shorten search times.
- Search by file/folder name.
- Search the contents of a file.
- Search Package Contents (useful for tracking down a string of text in say a plist file that has been encapsulated in a package).
- Search Invisible files and folders.
- Get Info, Reveal in Finder, and Open selected file/folder(s) directly from EasyFind.
- Quick Look support for previewing files without having to open them.
Developer: Devon Technologies
Website: http://www.devontechnologies.com
Price: Free