If you like monk, play monk. Just be sure to practice a bit. Read up on the basic rotation, and practice it on training dummies. You'll know you're ready for raiding when you can put a piece of paper (or a book or something) over the part of your screen with your action bars and can still do the rotation, DoTs and all, just fine. Once you know how to do that without having to stare at your bars, you'll have more raid awareness and won't die to silly AoEs. It might take a bit, but a poorly-played monk is pretty depressing to watch.