dunkin,
Hard to say without knowing what the domain is. As far as I know domains are worth $8 - $10, unless they are like in the stellar variety, like sex.com or men.com or something like that for type in value. Or if it has a good volume of traffic already hitting it.
Cool names are a dime a dozen, depending on who thinks it's cool.
Maybe give us an idea of what you want to offer and you will probably get more help
