I came across this app yesterday which I think rocks.
After switching to the app I wanted similar functionality to Tag & Rename and having tried every piece of software to tag my songs on OS X I was not happy and gave up numerous times but yesterday I must have made a slightly different Google search and found this and its great.
Not sure if its still in development though.
Official Site - http://www.xcoding.de/2008/07/13/simple-tagger-engl/
Version 1.1 Apparently - http://osx.iusethis.com/app/simpletagger
After switching to the app I wanted similar functionality to Tag & Rename and having tried every piece of software to tag my songs on OS X I was not happy and gave up numerous times but yesterday I must have made a slightly different Google search and found this and its great.
Not sure if its still in development though.
Official Site - http://www.xcoding.de/2008/07/13/simple-tagger-engl/
Version 1.1 Apparently - http://osx.iusethis.com/app/simpletagger