If you want to turn them on/off separately, you need 2 circuits for them.

And a 4-way circuit means that you have 3 separate places where you want a switch to turn these on or off. Is that really what you want?

If so, see http://www.do-it-yourself-help.com/4_way_switch_diagram.html for a fairly clear diagram.

Otherwise, tell us just what you want -- how many switch locations for this light/fan combo.

new house / have 12/2 wire in 2 gang box for power source . whats the best way to wire this . no drywall installed yet.

I need the same help with wiring a 4-way switch and wiring the fan and light independently. My fan is powered, the 4(3) switches are not powered, so I need to power those 3-way switches with the power that is coming to through the fan.......gosh does make any sense.

Hope this helps.