OK thanks. I think that's probably one thing that's keeping my dps down (other than the overall fact of my gear not being that great)
Here's my barb's profile:
http://us.battle.net/d3/en/profile/shiggity-1409/hero/27785710
As you can see, my gear is very non-uber. I tried to buy good gear at a low price given that my gold was only around 30M at the time my barb hit 60. I'm now at about 21M gold.
Also, I'm dying a lot in just pub inferno act 3 runs. Should I switch out ignore pain with War Cry and Unforgiving with Bloodthirst?
Your AR and Armor are low. Ditch IP for Warcry with Impunity and ditch Unforgiving for Nerves of Steel.
You are dying a lot now, you need to do these small changes so you can play without dying first. The thing is, you need to feel what it is like to kill everything without dying at all so you get a hunger to do it faster and more powerful. A key to learning this, with your gearset, is to WW on the outside of packs and not through them. You lack the survivability right now.
If I recall correctly, a 100% crit gem is around 200-220 dps on a weapon. I can help you out later if you wish. I have helped three friends with regearing and reskilling their Barbs.
Adrenaline#1529
Edit:
Start your regearing after what I mentioned above and look for these mininun stats if possible:
Amulet
100 strength 100 vitality 40 AR 7% crit chance
Boots
IK
Pants
100 strength 150 vitality 60 AR
Chest
70 strength 140 vitality 50 AR
Rings (yes both)
70 strength 70 vitality 30 AR (get LoH or AR) 4.5 crit chance
Gloves
IK
Belt
160 strength 100 vitality 60 AR
Sell your IK belt. IK belts suck unless you get the right stats. There are more viable options that give better dps and survivability for the gold.
Shoulders
170 strength 120 vitality 70 AR
Your VW lack vitality
This is what I would suggest before you do weapons. These changes will affect your survivability immensely.