Organizing mp3s

[Noah]

Hi there,

I am wondering if somebody can point me to the latest greatest apps out 
there that can help me organize my mp3s

Here are the details of what I want to do.

1) I have a samba mounted drive.
2) I want to ID all the songs and get the filenames consistent - like 
track name, artist, etc.  So is there software out there that can ID a song.
3) I want to find all duplicates, identify them, and keep the highest 
quality mp3 and remove the rest.

Any clues on the different software out there that can help me achieve 
this criteria,

Thanks in advance,

Noah