DREWE2000  this could be extremely handy for dealing with thousands of MP3s and photos. gonna check it out ASAP.  
(Version 1.0)

DREWE2000  Unable to rate at this juncture. I like the idea behind the application - there are other implementations out there, but the iTunes-like interface should fit this purpose very well.

Of course, I don't know that for sure yet, because it crashes when trying to catalog media at this point. For me at least.

Will keep a close eye on this one.  
(Version 0.1b)

ANDREW ELLISTON  SpamSieve is much more powerful and reliable than Mail's junk filter. I get around 3000-4000 spams per day, and around 100-200 good emails per day.

When I installed SpamSieve, it got 99.1% accuracy with 1 false negative immediately. (I trained it with 500 recent good emails and 3000 recent spams). This is the next day, and the accuracy has climbed to 99.6% and no more false negatives. Things will only improve from here.

This is better performance than SpamAssassin gave me, and I gave up on Mail's junk filter long ago. SpamProbe seems to use the same mechanism as SpamSieve for sorting out spam, but it's not as intuitive, doesn't integrate with GUI apps well, and was repeatedly corrupting its own database. SpamSieve is exactly what I was looking for - an excellent Bayesian filter with good GUI integration, good automation, and excellent reliability.  
(Version 2.2)