Wow Insider have a very interesting article up analysing the state of DPS in Dragon Soul at the moment. They use Raidbots.com and World of Logs as the primary sources and go deep into detail on the various statistics and balance (or lack thereof) of the classes. It's a very interesting piece if you can handle a lot of information but it's also explained very clearly so it shouldn't be a problem.
So head on over and check it out. Here's a taste: