Those clever guys at google have been at it again.
For those of you with iPods and iTunes here's a little Google program that automatically downloads all the lyrics for your songs into iTunes.
http://code.google.com/p/ilyrics/
When you then sync up your iPod the lyrics appear on your iPod screen (repeatedly press the centre button till the Lyrics show).
It is possible that this program has been out a while, but i've only just found it
Cheers
Jem