There's a skill calculator available on the D3 website. I thought it'd be interesting to see what peoples current builds are.
I'm currently running a Monk as my main character and this is what I've got at the moment.
I'm for the most part playing with a friend who is playing a Wizard. So the current strategy is:
Teleport into the middle of a group with FoT/Thunderclap, suck them in with Cyclone Strike, put up Serenity shield, cast Sweeping Wind vortex, sweep attack with Crippling Wave to build some Spirit and refresh SW vortex then Seven-Sided Strike whoever is left alive... if there is anyone left alive.
While I'm doing the above my mate is casting spells in my direction at the enemies I've sucked in around me with Cyclone Strike.
Works pretty damn well at the moment since we're low level. Will need to figure out something else later but for the meantime it makes things pretty bloody easy.