I am also actively house hunting, have been for a while now. To be hones, i use everything available to me. ALL the websites, everyday. i have contacted the estate agents in the areas i am looking for and have requested i am put on their mailing list, I regularly get updated property lists. I have given them my criteria ie. 4 beds, room for a playroom, garden. Ballpark price. 250 to 350. About average for a 4 bed semi in my neck of the woods. They do include some over and above this, but they are usually worth looking at anyway. I call to the local agents every week, and i am in the ones in the city every week. NOTHING escapes my notice. I know every house on the market in my area, when it goes on the market , when it goes sale agreed and when it falls through and when it is sold. I have sale agreed fall through on me twice, hence i am still on the market. I think you have to be a bit obsessive about it to get what you want, cos all the good ones get taken pretty quick. You caould be lucky and strike gold first time out, but i think knowlege is power re the housing market.
HTH