The World of Warcraft Website now offers a Mists of Pandaria Talent Calculator offering the chance to check out the new talent system coming to Blizzard's MMORPG:

We’re excited to be able to provide players with the opportunity to explore this new talent system and look forward to hearing your feedback. As with all previews, we ask that you please keep in mind that Mists of Pandaria and its class talents are still under development. This means that many of the spells and abilities you see in the Talent Calculator are not yet final and may change before release.