Check out Mayday Parade. They have beautiful music but it's more for sad writing, usually, or angry. It's very emotional though. Try out 'Stay', that's a very good song of theirs.
Then there is New Years Day, 'I was right'- The lead singer has a fantastic voice and they have a great beat.
Get Scared has really good music. 'Sarcasm' and 'Whore' are good songs, but they have changed lead singers, I think... if they are even still doing music. I'm not sure.