What we are looking for atm is a tank, preferably a blood DK but willing to accept others, that knows how to optimally itemize for the challenge mode scaling and is ready to knock these challenges out. Desirable qualities include the ability to speak clearly and listen in vent, and a good knowledge of the heroic dungeon encounters. You'll also need to have good scheduling flexibility (i.e. have a lot of disposable time to do things that don't directly increase the power of your character for raids).
If this sounds like something you'd be interested in, give me a shout in game or send me a mail telling me about you, what you'd like to bring to the encounters, and of course your availability. And I guess I should say that you don't need to join my guild to do this, in case you are worried about that.