Currently, the maximum bid and buyout is $250 on any one item, and already stuff is set at that max price. Blizzard takes a $1 cut on every successful auction, the minimum auction is $1.25 of which you would get 25 cents. If you want to buy and sell on the RMAH your are required to attach a Battle.net authenticator to your account.
Equipment or gear sales come with a $1 deduction (taken by Blizzard from the sale amount). Sales for anything else—like gems, crafting materials, and gold—take a 15% deduction instead of the flat $1, Gold must be sold in quantities of 100,000 or more. As of todays date the 13th of June 2012 you are still unable to sell gold or gems or bs recipes and these features will probably be enabled later.
Any money made on the auction house is subject to a 15% withdrawal fee if you want to put it anywhere besides the Battle.net balance. You can use your battle.net money on the auction house, to pay for WoW subscription time and pets, or anything else linked to your Battle.net account.
The photo is of all the top 2 hand bows available for a demon hunter.
