MP3Tag alternative?

Switched to Mac recently and for the most part I have been happy and either found software for the Mac that was also on PC or found a Mac alternative. The only speed bump I have ran into is MP3tag. I used it on PC and I loved it for my collection and I have yet to find anything close on Mac. I would be willing to pay for a program but I was curious if anyone has a great program for ID3 management of a large collection. I like the simplicity of MP3tag, and the options. Also I felt the GUI was great and I found it very efficient to edit large amounts of albums.

Before anyone suggests no I don't want to use iTunes. I am not anti-iTunes I just don't want to import 50,000 songs into my library to manage the tag information. Also there is a lot of music I have I cannot stand - wife's collection :)

Thanks