EasyFind tool for OSX to better search within files between hard drives, network drives, etc. Pastors, for example, would appreciate the ability to search within all of the sermons they have ever written. Just make sure you change the settings to include all files. It does not index, but searches within all files each time you search.
This isn't quite as slick as Ninite, but at least it is something for Macs. It makes it a whole lot easier to gather those free apps you want to deploy to new Mac users. It even detects some other apps that you may have already installed.