A few groups to check out

Top on my list would be Chris Tomlin. He has a real gift with song
I would go with Hillsong for great Worship music
Followed by Matt Maher who is a great, down to earth super Christian. He did a Music Ministry workshop with us in New Hampshire one on one. Very informative
Natalie Grant
Mercyme
Jars of Clay
Kutless
Lincoln Brewster....just to name a few
Enjoy and support these people,...you'll love their music if you haven't heard any of it yet

I love those bands. Mercyme, Jars of Clay and Kutless are some of my favorites. I also love Thousand Foot Crutch and FireFlight. I used to be a major rock n' roller, so they are some great Christian rock bands.