SK, If I was to tell you it wasn't worth a dime, would you take a nickle for it?
KBB has listing for what a dealer might charge or a private seller, but these are guesstimates, lots of variables. Just because one person describes a car one way does not mean others will see it the same. It is a good estimate of what cars are worth and will give you something to go on.
I also like to look at EBAY motors and see what like cars are selling for. Local paper and Used Car Dealers are other places to get a good idea what like vechiles are going for.
What ya selling?
Also on a side note never give your bottom dollar price, always ask for offers. The offers may be more than rock bottom price, once you give this out you can't go back up.