Well, at the bottom of the excellent wikipedia link you provided there was this:
www.stutenandy.de/cue.php?lang=en
Its not fully automated but it seems like it does the grunt work at least.

Thanks by the way. I was confused because the set I'm downloading is already seperate tracks. I guess the cue sheet is included to get all of the track titles onto the CD as .shn files have no tag information.

pairustwo