Hi, I'm interested in the tv you have for sale.
Yes. It's a good TV, I just need to make some space.
So everything works on it as it should? 
Yes. It's in perfect working condition and I'm looking to sell it for $700.
Oh wow, that's just a little high for my budget. Could you come down to maybe $625?
I really need the full $700, but at that price it comes with the surround sound speakers AND a Samsung BluRay player.
That sounds like a good deal, but I only have $650 in cash.  I can pick it up tonight if you'd take that.
How about $670, and I'll have it dusted and ready for pickup tonight.
I wish I could, just don't have that much to spend.  I could probably borrow 10 from my brother if you'll take $660?
That hurts, but I really need the space. $660 it is.