Sanctus Real -just about everything they sing is awesome!
Relient K - fantastic alternative rock-sounding band, song "Forgiven" is great, also "High of 75", "Be My Escape", "I So Hate Consequences" --listen to their cover of the Veggie Tales' "Pirate Song" - hilarious and well done!
Skillet - Great sound -almost Metallica-like
David Crowder Band - "Forveverandever etc"
Thousand Foot Krutch - If you like the hard rock, the song "Puppet" is awesome! (May not be able to understand all the words) ... But you HAVE TO LISTEN TO THEIR "Breathe You In" ballad - it is amazing -and you can hear all the words!
Waking Ashland - great song of theirs is "Hands on Deck"
FM Static - songs "Crazy Mary", "Tonight", "Waste of Time", "Hey Now", "Something to Believe In" are great rock/pop
Downhere - song "The More"
Everyday Sunday - song "Find Me Tonight"
Toby Mac - (of course!) songs "Made to Love", "Burn for you", "I'm For You"