Here is an example strategy of how the Barbarian can become a "Gold Farm Barb" in Diablo 2. I'll then go into my own prediction for building a Diablo 3 "Gold Farm Barb."
"Goldfind Barb Items-- (18 Lem runes total)Weapon1 (hand1): 6os crystal sword (fill with 6 lems)
Weapon2 (hand2): 6os crystal sword (fill with 6 lems)
Switch: +3 warcry weapons, or Heart of the Oak (KoVexPulThul) / Call to Arms (AmnRalMalIstOhm)
Helmet: Crown of thieves or a 2os circlet with goldfind (fill with lems)
Armor: Wealth Armor (LemKoTir)
Boots: Boots with 70+ Goldfind
Amulet: Magic ammy with gold find
Inventory: 8x 35%+ goldfind gcs, 10x 8%+Goldfind scs, Gheeds, Barb torch, Anni
Merc: Level 85+ Nightmare Act 2 Offensive--Wealth Armor (LemKoTir), Crown of thieves, and a weapon with high damage such as ethereal Insight (RalTirTalSol).
Skill Setup--Battle orders: 20
Find item: 20
Extra points go to: Increased Speed & Natural ResistanceDo Nightmare Travincal runs.
Merc is primary killer.
Use Leap to knockback the monsters making it easier for your merc.
After you kill all the council members, use Find Item on corpses to get more gold.
Merc's goldfind is added to Barb's for the kills.
Monster drops should be approx. 30k-40k gold"
OK so that was how it used to be done in Diablo 2. What about Diablo 3? Take a look at this screenshot of the Barbarian's Grim Harvest Runestone on Threatening Shout:
I haven't seen a clarification for this, but I believe that "treasure" in this sense refers to both Gold and Magic items. 5% is pretty nice, especially if you group up enemies and shout them all. You could have a Templar that taunts to be your tank or do the tanking yourself and use the Scoundrel or Enchantress as backup. I'm sure that there will be a combination of skills, follower, and gear that becomes standard for the "Gold Farm Barb", but the principle of how it's done should remain the same across any variations.
Step 1: Get the best gold find and magic find gear possible for your barbarian.
Step 2: Get a Templar with good survivability gear that also has gold and/or magic find stats.
Step 3: Spec the Templar for tanking and yourself for Grim Harvest on Threatening Shout, with the rest of your abilities focused on damage instead of survivability.
If people use this strategy and it turns out that you just aren't killing stuff fast enough, players will try to spec their barbarian for tanking and use the Scoundrel or Enchantress for damage dealing.
What are your thoughts on this kind of strategy?