Depending on where you live and how most transactions are handled you may be putting yourself at a disadvantage (note...I am a Real Estate Broker so my perspective may seem somewhat biased).
You will not get the listing exposure (advertising, etc) that you would get from a Realtor, nor would you get the service...we attend all showings of our listings to be assured that our listing is getting the full exposure it needs...the seller is typically not present as a buyer is often intimidated to ask questions, open cabinets, etc if the seller is present...they don't want to offend the current owner. The Realtor should point out various features of the property and also be able to speak to the buyers about how the property may or may not work for them given the type of financing they will be using....oh yes, we also make sure the buyer is pre-qualified and can afford and finance your property. You will also need to schedule your appointments, follow up with agents for feedback, etc...
Once a deal is reached, someone will need to draw the contracts...in our area this is typically done by the Realtor, not an attorney. You want to be sure your interests are protected...the selling agent will be looking out for the buyer and should also keep you informed as to your rights and responsibilities, but they are not being paid as a Dual agent, just as the buyer's agent.
I have had customers use the type of listing you describe, and they have ended up withdrawing their property from the "you sell" type of listing and putting the home in the hands of a realtor.
Good luck in whatever you decide!
