uTag (pronounced micro-tag) is a free application for both music lovers and radio producers - it plays, tags and helps you manage the properties of your audio files.  You can tag using APE/ID3, Cart Chunk, FLAC, OGG and Myriad JMD formats...

uTag offers a simple to use PFL player that you can use to set cue points as well as a simple set of Track Attributes (Artist, Title, Year, Genre etc).  Unlike MyLibrary, this program has no "bulk change" support or any of the advanced playout export options - it simply tags a single file at a time with the ability to interface to most professional automation systems via Cart Chunk.