I have seen Fireflight a few times in concert. They have matured over the years in their style without losing their powerful message of hope. Dawn is an inspiration, I've met her in person, and used to talk to her over myspace when I was active there - she actually remembered me last year by my first tattoo, which I had shown to her at one point on myspace.
Plus they support To Write Love on Her Arms. There's nothing better than that combination, in my opinion!