Bowling for Soup
Breaking Benjamin
Cartel
Evanescence
Good Charlotte
Simple Plan...? (they haven't been around in a while. :P)
Sum 41
The Used (mainly the The Bird and the Worm)
Three Days Grace (if you liked 30STM's "A Beautiful Lie" you might like "One X" or "Three Days Grace")
If you don't care about a little Christianity:
Relient K
They're not straight down christian, though. They have lyrics that CAN portray God, but could also be like regular songs. Plus, their lyrics rock.

I recommend "I Need You," "I So Hate Consequences," "Maintain Consciousness," "This Week the Trend," "Who I Am Hates Who I've Been," and "Which to Bury, Us or the Hatchet?"
Then again, why listen to me?
