OK, so first off, dual wield is not great. Here's how it works:
o It AVERAGES the damage of your two weapons
o You strike alternately between main and off hand [for stuff like life on hit]
o You get a flat 15% attack speed modifier
Unless your two weapons are within 15% dps to one another, it will be a dps loss to dual wield [other stats notwithstanding]. You basically spend twice as much getting the same dps as you would from a 2h. Conventional wisdom: for dps go 2h, otherwise 1h/shield.
Try something, check the dps on both your weapons and see how close to each other they are. Unequip your offhand and see if your dps goes up. Then search the AH for two 1h weapons of comparable dps. See what kind of 2h you can get for the same price. Realize that you would spend twice as much on the two 1h weapons.
Starting out in inferno, I would absolutely recommend 1h/shield for the extra defense. It's slower going, but more stable, and with repair costs going up I think the stability is worth it. Shield is possible the most important part of gear. You want to get a good shield with decent stats, but by far the most important thing is that it be a Sacred Shield type model with a high block %. This is what the icon/shape should look like:
This shield has the highest block amount in the game [higher than the legendary Stormshield]. It has the potential to roll up to 29% block, so try to get something with 25% or higher. The +26% chance to block that you see is what you get. The +9% block attribute in blue below is already baked into this +26%. Try getting a shield with all resist and Life% or vitality. Sacred Shields are currently priced very high because everyone has figured out that this is what barbarians and monks want. Getting something with a low block %, even as an interim solution, is probably not worth it. At an absolute bare minimum, aim for 22%. Your shield will be expensive, so be ready to spend a bit.
Next, all resists. Aim for 400 unbuffed all resists, it's roughly what I had when I found I could cruise through act 1. Aside from all resists, try to get the odd stray bit of physical or fire resist over any other type of specific resist. Physical resist should be obvious, but fire resist is very important because molten, fire chains and desecrate are amongst the more deadly affixes for melee.
Prefer items with bonus armour as well. Your armour is very low.
Your hp is fine, if not a bit high. You could potentially lower it a bit to go for more all resists and armour. Your dps could also stand to lose quite a bit in exchange for gobs of survivability. Go no lower than 40k hp and 8k dps though, just some rough numbers.
Gearing up, the big vitality items are chest and pants. They have the potential to roll the highest values of vitality. Don't be afraid of getting blues with super high vitality and all resists with no strength on them. The big strength items are shoulders and belts, likewise, don't be afraid of getting big values of strength with no vitality. "Perfect" pieces with healthy amounts of strength and vitality and all resists are absurdly overpriced. You don't need all on all pieces of gear, just a good balance across the sum of your gear.
Your spec is solid and is essentially one of the variants of the cookie cutter defensive barb build. I can't see what runes you are using though, here's what I use:
Frenzy/Sidearm: overall it's better than Maniac
Charge/Dreadnought: on demand heal, great mobility
Revenge/Provocation: mandatory
Ignore Pain/Iron Hide: the extra 7 seconds is super useful
War Cry/Impunity: the bonus resists here are mandatory
For the final skill, WotB is a solid option, but I personally prefer Leap/Iron Impact. Not only does your mobility shoot up tremendously having both charge and leap in the same build, but you get a very very solid defensive cooldown: leap, 4 seconds of iron impact, chain into 7 seconds ignore pain, by this time leap is off cooldown, leap again. This gives you 15 seconds of near invulnerability with which to kill stuff. After this you can asses, finish them off, or charge heal and kite for a bit until ignore pain is nearly up again.
WotB is a great burst cooldown, but starting out I would go for the extra mobility and utility. It's a personal thing, but I don't like being a 2 minute wonder and then being useless while WotB is on cooldown. I prefer the consistency of skills that are up more often.
Your passives are fine too.
Companion. I hope you are using the enchantress. She has a passive skill which gives a 15% armour boost. The other skills to use on her would be charm on the first tier, then the aoe arcane pool spell and haste for the final tier. Gear her up in cheap AH blues with the most intellect. Don't worry about her vitality, anything that would kill her with 20k hp will kill her only marginally slower with 50k hp. Followers get a 2.5 multiplier with raw stats so they are easy to gear. Get the biggest dps 2h with the highest intellect possible. Get blue amulet, rings and focus with the highest intellect possible. Spent no more than 100k and you can easily beast her up to something like 4000 dps.
Zrave is one of the best softcore barbarians out there and I highly recommend his videos. Here are some to get you started:
Common barbarian gearing mistakes:
http://www.youtube.com/watch?v=hJ3eR1E960g
Million gold challenge intro:
http://www.youtube.com/watch?v=nb8syAXN9OQ
Million gold challenge shopping:
http://www.youtube.com/watch?v=ORN9vp2wZ8Q
Million gold challenge Act 1:
http://www.youtube.com/watch?v=1xq_S8UKS5U
Hope this helps.
