What is the safest way to buy gold in World of Warcraft?

I need a good website that doesn't use bots and offers the safest way of obtaining the gold. I've bought it before, but never in large quantities. I don't want to hear, "It hurts the economy of WoW" Or how they get the gold from stealing accounts...Odds are those stolen accounts are stolen due to Power Leveling on that account. So me buying it is only sending the gold through another loop in it's life of being recycled. Thanks for any help...I want that legendary staff!