We are about to put our house on the market and I have been advised not to use online agents as you still have to pay a significant fee, but usually end up doing the majority of the work yourself, which is fine if you have the time and knowledge, nerves of steel and a thick skin! Whilst good agents do seem hard to find, I am told when they are good they are well worth their fees. I suggest you use your local Streetlife forum to sound out recommendations. I did have a strange experience after using Rightmove to get an estimate of our house value - I then got two phone calls from strange sounding companies I had never heard of before, both telling me they understood I wanted to sell my house and offering their services! I gave them short shift I can tell you! Just say I am not looking forward to the next few months, it is 39 years since we bought this house and things have certainly changed since then!