Salarly Negotiating Help....Please!?

You were out of line, you need to understand job interview skills and dos and don'ts, one, you never ask for a few days to think it over, two, when they say they'll negotiate you don't launch into a figure that's 15k higher than their offer, and three, your living enxpenses are not relevant to the company, all they need to klnow is what you can bring to the table skill wise, not your living expenses, that's your problem, not theirs, and is never a factor in salary negotiation. The 51k figure is something you found, not something you earned, so that is even more irrelevant in that light; and you need to come back to earth and decide if you even want this job or continue looking until you find someone willing to pay you 51k, which is highly unlikely esp in today's economy. You need to be more realistic and understand that for every job you apply for, there are many others with your skills or higher and you need to decide which is more important; getting a job and earning your way up or looking until you find the perfect job with the perfect salary. I believe they will take the offer off the table and find someone more malleable and less expensive esp given the fact you are untried as yet and they have no way of knowing what you can do, hardballing in a job interview, again, esp in this economy, is just not a good idea IF you want a job. There are CEOs who were earning MILLIONS a year who are now working for an hourly wage, so again, you need a huge reality check, you are far from unique.