Ok, for bands that have gone from unapologetic to subtle, Calibretto 13 is a big one. They used to be one of the most unapologetic bands ever, now they just sing about psychos and weird stuff. There's more to it than that, but I'd rather not go into it right now. For bands that I like alot, here we go.
The Agony Scene (Not christian anymore, so I won't buy their new CD)
As I Lay Dying
Ballydowse
Beloved
Blaster the Rocketman
Blindside
!BNB! All Stars
Brave Saint Saturn
Calibretto 13
The Chariot
Craig's Brother
The Deal
Demon Hunter
The Dingees
Disciple (old stuff)
Dogwood
Emery
Every New Day
Extol
Five Iron Frenzy (my favorite band)
Flatfoot 56
Hannover Saints
Haste The Day
Havalina Rail Co. (you can get the full CD of Russian Lullabies from thier website
www.havalinaland.com)
He Is Legend
Headnoise
Holy Blood (even though they don't sing in english)
The Insyderz
Living Sacrifice
Lucerin Blue
mewithoutyou
MXPX
Nodes of Ranvier
Norma Jean
Officer Negative
P.O.D.
Project 86
Relient K (yeah, I like them despite the fact that the internet thinks they stink)
Roper
Saviour Machine
Slick Shoes
Squad 5-0
Stretch Arm Strong
Supertones
Theocracy
Training For Utopia
Underoath (older is better)
Virgin Black
Zao
Zippy Josh and the Ragtag Band
I like more than that too, but not as much as those listed.
EDIT: To anyone who saw the 3 band list, it submitted before I was done, and I didn't realize it.