Seems i always bump into these gems a little late in the game...
I don't know much about this app yet except:
- for being freeware, it looks quite brilliant,
- it's incredibly well documented, and...
- unfortunately, discontinued.
Nonetheless, it may still be useful to someone (i'm checking it out myself), and it definitely deserves a place in this thread:
>>>
Nifty Box<<<
Follow all links at that site, especially the blog which contains some "support" items to download (a Spotlight importer and an OpenMeta exporter).