As someone who has spent the last six months competely redesigning how our company's computers handles and processes data, I have a more-than-casual interest in this software category. I vigourously test any/all new or updated entries into the market and find Nifty Box the best, especially if tagging is more than a convenience. As a matter of fact, the gap is so wide between Nifty Box and it's competition it's analagous to a man playing against boys. Nifty Box is industrial strength technology that is both nimble and flexible, combining the best of the new technologies and common sense. It sports a beautiful interface that accepts all file types and previews. Instead of storing files in its own data scheme, which, in my opinion, is not acceptable in today's environment, it intelligently marks and keeps track of your files by accessing Mac OS Core Data, insuring the integrity and safety of your data while not contributing to unnecessary hard disk bloat. The program is so intuitive I've never had a need to look anything up in Nifty Box's help. The program, although only in version 1, has never crashed despite hours of rigorous use. I've contacted the developer on several occasions and find he is active and responsive. If you need a tagging solution that is complete and scaleable look no further, Nifty Box will handle just about anything you throw at it and then some. It would be great if all software worked this well. Nice work!