I agree that the East is up for grabs. Detroit clearly looks like the team to beat, but Chicago is just a modi of maturity away from being better (Translation - probably another season) and Detroit is just a serious injury to Sheed or Chauncey away from a serious fall.
Miami, Washington, or Cleveland could pull an upset of anyone, especially depending on who's still standing come playoff time.
And in the west, a 7 game series and no back to backs could be the difference maker for the Spurs. The Mavs and the Suns have had a lighter schedule and gotten some lucky bounces. In a 7 game series, the Spurs can still grind it out against them, and I believe they will, since they'll have to face one of them in the West Finals. As it stands right now, I'm gonna have to go with the Suns, because I think they'll knock the Mavs off for everyone. Amare will dominate Dirk and show him who's boss.