Now that nearly every popular online music store is selling a la carte tracks in the unprotected MP3 format, it's high time to clean house and convert those ...

Winamp <2.61 will let you play a WMA through the Disk Writer output plugin; this produces a WAV which can then be encoded to MP3 with any program of your choice ...

Going WMA -> MP3 is the same as going WMA -> PCM -> MP3 (where PCM is the uncompressed WAV file). WinAmp with the WMA plugin will convert the WMA to a WAV file - just use the proper output plugin ...