Best Practices for Selling a Domain?

What are the best practices for selling a domain through GoDaddy's auctions?


Obviously, when you buy a domain with the intent to sell, you want top dollar for it. You also feel that the domain is worth more because you own it.


However, if you've done the proper SEO research and know the domain would rank well if used properly, how do you properly price the domain for sell?


For example, if domain contains words that roughly gather 800k to 1.2 mill searches per month, what would you price it at?