Can anyone recommend an MP3 tag editor for Mac?

I'm looking for an accessible MP3 tag editor for Mac. I've seen the entry on here for Mp3tag, which sounds good. However, I typically only edit 1 or 2 files a month, so can't justify throwing down $20 on something.

I don't need all the bells and whistles. Just something that will allow me to check and edit the basic tags and artwork of an MP3 file. I don't mind spending a few bucks.

Any recommendations would be welcome.