We did quite a few instance runs this weekend, the Black Morass and Steamvaults were the toughest ones, but in the end we managed to finish them all :).
Especially the Black Morass is excellent. It’s a constant fight and you have to keep on your toes the whole time. But once you get into a sort of rhythm, it’s not too hard. Morphea was on addon duty with a little help from a mage (beano or pangloss). Excellent tankage was provided by Donahue and healing by Timps ;). Blizz should definately take this direction in WOTLK, I think this instance also won the best instance poll on the wow forum.