Thanks. I checked out Soritong. It has a decent editor to add lyrics and timecodes, and a console that lets you view lyrics karaoke style. And the lyrics go into the mp3 file. They claim that it goes as part of the ID3 tag, but I don't know if they are using the SYLT frame or not (I edited the file and searched for SYLT and didnt find anything).

I love Musicmatch. I hope they implement synchronized lyrics on their player soon (isn't there a Musicmatch employee who is a regular on this board?).

~Yogi