to support a ww build, you need 24% movement speed, good crit chance, aps (ww and sprint both use breakpoint system, so don't blindly increase this, there is a thread about the breakpoints, just google "sprint breakpoints", the first result is what you should read).
Those are the requirements for WW build to work well.
1. WoTB + thrive on choas (a must, the goal is keep extending the duration, aka perma zerk)
2. Battle Rage + Into the fray (a must, this is how you keep generating fury to extend WoTB)
3. Sprint + run like the wind ( a must, main dmg dealer, and insane # of hits, # of hits is related to the number of tornadoes you lay down, which is relate to movement speed, thus you want 24% ms, and how many hits each second each tornado does, which is related to your attack speed, again, do read the breakpoint, it is too important, you have to understand the mechanism behind it)
4. WW+ hurricane (a must, mobility utility, minor dmg dealer, allows you to move through mobs as your current movement speed, lay down the tornadoes, any other skill rune than hurricane will reduce your movement speed, thus less tornadoes generated)
so you have 2 free skill slot,
for starters, go with a fury generator, either bash - instigation or cleave with the extra fury rune, the goal is to use this skill when you starve on fury, should be used only when needed to. Then for the 1 left, you can either go warcry - impunity if you have survival issue and need defense, or you go overpower - killing spree if you have enough defense from gears and other skills, to give you more crit chance.
ruthless, weapon mastery is kind of mandatory unless you already obtain insane amount of crit chance from gear, but even you have good crit chance, those 2 are still the best passives. the 3rd is the free slot, depending on what you need, if you have high enough DPS and need LS, go bloodthirst, if you need defense, go tough as nail, if you have enough stats in every department, you can go wild with the 3rd passive
okay, here is the breakpoint thread, do read it, memorize it, sleep with it :)http://eu.battle.net/d3/en/forum/topic/4902400739