Do not do this unless you want to pay Trout or Patrick. You will want to shop on your own anyway so wtf you pay 3% to an agent for? Dr. J gave me **** for using an agent an he was 100% correct. It's stupid easy to save $10-15k without one.
A buyer doesn't pay an agent. Their fees come out of the sellers fee. If you're buying a home, why not use an agent?