The Red Jumpsuit Apparatus
A Punk, Emo, Screamo, not so much Rock, but all-in-all you could call it a Scene band that has powerful, emotional, incredible and meaningful  lyrics to every one of their songs.
They have two albums;
"The Red Jumpsuit Apparatus" came out in 2004
and
"Don't Fake It" which came out in 2006.
I recommend both of them, as many other people do also.
Guardian Angel, and Face Down (The Acoustic Version for Face Down is less screamo and easier to understand the lyrics) are not only two songs that are by The Red Jumpsuit Apparatus but are also very good examples of what they are about. They have strong lyrics, and really make you think about what you're listening to.
A must-listen-to Band. They are awesome.