If you are wanting to try the ww build, you should read up on breakpoints.http://us.battle.net/d3/en/forum/topic/6037344497
Basically, you need a certain amount of IAS in accordance with your EFs +APS value to make your nados tick off damages faster.
This is important for two reasons. More ticks= more chances to crit which = more fury and also which in turn means more damage, and more life returned via lifesteal.
You are wanting to get a .23-.25 EF, (I would say a .24 to ease gearing), and four slots of IAS, generally a mempo, inna pants, ias on your gloves, and lacuni bracers. That leaves your ammy open to get massive cc/cd (as this slot can roll the most for both of those). The amount of IAS you need on those four slots depends on the +APS value of your EF. Right now, you have a .21, and need 5 slots of IAS to get to the recommended 2.5 BP.
1.41 EF – 38 points of IAS <---5 slots of ias
1.42 EF – 37 points of IAS <---5 slots of ias
1.43 EF – 35 points of IAS <---4 slots of ias (9,9,9,8)
1.44 EF – 34 points of IAS <---4 slots (9,9,8,8)
1.45 EF – 33 points of IAS <--- 4 slots (9,8,8,8)
All IAS amounts are whats required on gear, WOTB is already accounted for because the goal is to permawrath, and you shouldnt lose it.
Aside from WW, ANY barb build that has good synergy, requires two things: High crit chance, and battle rage/into the fray. (HOTA, Weapon throw, Seismic slam or any variants of those)
If I had to upgrade one piece of your gear, it would be your ammy. Need to get CC in that slot.
Stats you should shoot for in slots:
Chest- High vitality/medium+ str/ AR
Shoulders- High vitality (preferably vit spaulder crafts with 250 vit/ 200 str+ AR
Pants- High vitality (if using rares high vit/100+str, 2OS, AR
Boots- High str iceclimbers with some vitality.
Bracers- lacunis offer two helpful things besides the crit chance, movement speed, and IAS
Gloves- trifectas with high ias/cc are great
Helm, If you have enough ias elsewhere, IK helms with AR are a good thing, if you lack the ias, a high str mempo is best.
Rings- CC/CD/avg/mainstat (sojs for elites, with ww, you can use any classes cold soj, just get high BVE)
Ammy-we covered this, CC/CD/mainstat
Read thru some of the gearing threads in the sticky, some of the good info is in the posts, and not so much the OP (But the OPs have great info.)