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Raid experience: On my priest I have killed the Eredar Twins in Sunwell Plateau, and have been in for attempts on Mu'ru. I have run Black Temple with both my Mage and Paladin, although I don't think I've gotten any gear from BT on either character... I'm familiar with every fight from High King to Mu'ru.
Anything else we need to know that you want.
My main is Carbi, on Arthas ( http://www.wowarmory.com/character-sheet.xml?r=Arthas&n=Carbi ). I was in <The Mourning> but they stopped raiding until Lich king, and am now looking for a casual guild to kick it with. I'm not looking for a dedicated raid spot (I will, of course, help if/when you need), just some fun people to chill with. I know Zithron well, and ran Kara with Elone, both very nice guys.