If you have to ask on a forum if the home is overpriced you should not be buying it or any home.
The proper way for you to determine if a property is fairly priced is to know the market. How do you get to know the market? Only 2 ways and you need to use both. 1) View as many homes in the area that are of similar value as to what you are looking at. 2) Have a good buyers agent that can also direct and inform you based on their experience in the market.
Tools like Zillow and Trulia can help provide broad information on homes and historic information and trends, but they do not know how it actually compares to the properties that are competing
A home is only overpriced if a) you don't feel it is worth it to you. b) no one else feels its worth it to them c) the appraisal comes in lower.
Get yourself a buyers agent, and or view as many homes as you can.