Here is my build: http://us.battle.net/d3/en/calculator/barbarian#WXYkRV!VXc!caZcbc
I am a 1h+Shield barbarian.
So this is what you need to do
1) Check your vital stats
These are what you should aspire to if you want to have "moderate difficulty" in Inferno, anything beyond these, and you should be able to own Act1 with no problems. Elemental resistance is KEY!
DPS: 8-10K unbuffed is more than enough. I beat Act1 with 8k unbuffed, with my fury+berserker build, that DPS soars to 10K
Raw HP: IMO, you need this to be at least 30K or your pool simply won't be large enough. If your HP is below 25K, you will be getting facerolled. Consider dropping your DPS to get vitality
Armor: Damage reduction should be at least 65%
Resistances: Do not blame anyone but yourself until all of them are at least 30%, switch your warcry to the resistance rune too if you need aid.
I am only half geared, and this is what I have
DPS: 8000 (10K in combat)
HP: 33K unbuffed
Armor: 70% reduction
I have a shield with 20% block
Resistances: Average 45%-50% unbuffed to elemental, 50% to physical unbuffed
2) Check out the AH for items
If your stats have a huge discrepancy from at least 30% elemental resistance, consider the auction house. Go look for items that have vitality and "All resistance" in the filter, DPS is second if you can achieve 10K dps. A typical glove/shoulder/etc goes for 50K with Strength/vitality/All Resistance
3) Tweak your build.
No one's gameplay suits anyone else exactly, you may have to do adjustments.
4) Be realistic
The above includes learning how to fight in inferno . Sadly, gone are the days where you can litterally stand in one position ALL the time and just fight. I am at the point where I can tank some blue mobs and stand in desecration, but until your gear is there, you need to learn to melee kite. That includes stunning+putting in DPS+then running.
5) Solo at first and use your mercenary
A 4 player inferno game for a batch of fresh 60's is MURDER. Yes, this is essentially poor game design. I played the game with friends and unfortunately we had to split into groups of 2's or even 1's until we mustered our gear to do 4 player games. Finally, use your mercenary! I love the enchantress simply cause of her attack speed aura. You don't need to use her but I find she's the most useful.
6) Have faith and do not be discouraged
I see too many people giving up too fast or too easily. I'm sorry but you need to suck it up. This isn't WoW and this isn't console game. Diablo is unforgiving and Blizzard has created something to truly challenge the players. If players had act4 on farm status within the first week, I would've seen that as a failure. People fail to realize that this is the essence of Diablo at play, GEAR CHECKS. This is a dungeon crawler for crying out loud, if you want to go through dungeons, die and "learn" from your mistakes - go play Dark souls. This is Diablo. I've played the franchise since day 1, and I'm really glad the days of waiting for a Sorc to tele to Hell Baal are gone. Or stupid cow level runs, people just leeched and ran around with no effort yet obtained loot. That's boring IMO.
a) Do not bother to farm Hell. Nothing in hell drops that is a level 60 item as far as I have seen
b) Do not do dank cellar/Captain Dalytn runs
c) Go farm the Crypts in the cementary for the blue mobs/Jar/Woman (EASY LOOT)
d) DO auction house pieces of equipment that you need
e) DO NOT obsess over your DPS, if you cannot survive, there is no point
Commentary on my build
Yes I realize there is no 2min cool down skills, but they're not needed. I've cleared everything in Act1 reliably and sometimes with 0 deaths using this build.
I essentially leap into combat and then wait a few seconds until my armor buff is down, I then proceed to stun and continue to DPS. I pop ignore pain when I really need Life leech/Damage mitigation. I bind my right click to my leap, yes, leap. This is your bread and butter, as a barbarian we need to get in/out with no problems. This has saved my life many times and so far, the only viable way to beat Arcane Jailor Waller Fast mobs.
While observing the fight when encountering blue/yellows, you need to keep in mind of your situation at all times.
- Is there mobs around me?
What sort of modifiers does the mob have?
Is there arcane laser/ice balls forming under me?
Is there any doors or pathways I can exploit to create choke points?
Where is my escape route?
Are there any additional mobs in play that could ruin the fight? (i.e. the Oak Ents in Act1 that cast acid)
Jar of souls event or the Ghost lady in Crypts (Cementary) Act1
Just run in and check all the crypts for the jar or the lady. When you finish the event (ignore the mobs for the Ghost lady), you get a decent amount of loot. I've obtained 700+ DPS rare 1h's from this and sold em on the AH for over 750K. This is your prime source for farming if you cannot afford things on the AH (but seriously, you should have accumulated at least 400-500K of gold by 60 even with aggressive crafting)
Last words: Good luck. If you follow all of the above and put in a decent 24 hours of game time, you should be clearing Act1 inferno no problem. The changes you will see should be dramatic.