I would suss out a value from ebay and stick it on craigslist. Hard cash on the spot and you don't have to worry about shipping etc. If it is a hot item there will be someone within driving distance that can come up with the hard specie.
I really only have one long term bill I am working down - depending on how much lucre I conjured up out of this I would put it towards that bill - if the amount I got was in excess of that I would bank it.