I found Anberlin about two years ago and immediately fell in love with the band.  Great music, great lyrics, great music videos.  They released Dark is the Way, Light is the Price earlier this year.  One of my favorites is "Impossible" off that album.  It's definitely not a very happy song, but one I feel has such strong emotions.  It's hanuntingly beautiful.  The music and lyrics make a complete picture.  The music video is even better.  The graphics are awesome with a great grey scale color scheme. My favorite lyrics:

you're impossible but lovely so impossible to win or please i'm wearing you out, just wearing you out but i'm wearing you down

take what you want from me, it means nothing now take everything from me, it means nothing now not so easy to forget, harder to forget take what you want