It doesn't have to be hardcore - although I'm no stranger to that style of raiding and would welcome it - but it does need to be a regular raid scene of people who want to act with basic work-ethic. Show up on time, fully gemmed/chanted/reforged, food buffs, flasks, addons, vent, etc.
I personally have just returned to wow and tanking in cata, so I have no actual experience with any of the cata raid bosses. I do, however, read strats, watch videos, and know my class. This toon has been lvl 85 for only a week and my gear is already on par for normal mode raid tanking, if that gives you an idea of how I play(yes 371 pvp gear is better for bear tanks than 359 PVE. Look it up.)
If I sound like someone your raid can use, hit me up in game or drop a reply here. Thanks in advance!