Am thinking of selling my PR 3 domain name/website. but not sure how to do it right.

[uberduber]

Originally Posted by Bluey

Could we ask what sort of price tag you would you like to put on it?

I am unsure how this all works. Before I ask for a price I would just like to know how it all works.. Yes I know I sound like a dufus but I have never done this before. I thought of putting it on sedo but I figured I would ask where people would actually know versus doin it all blindly. And also how do you determine the value of a site/domain? I looked it up on a few places and they all say different values. So again I decided to go where people would actually know.
If I am being too vague it is only because I am a noob to this part of the net.
Thanks in advance