Attorney Ranj Mohip is a Chicago real estate attorney. The information in this answer is general information and is not intended as legal advice. Further, answering this question or otherwise contributing as a member of Trulia.com does not create an attorney-client relationship. Remember, consult the best real estate attorney in Chicago or in your respective area.
A rough number would be $4000 - $5000 including your inspections, attoreny, appraisal, filing fees, origination fees, title insurance, homeonwers insurance, tax and insurance escrow funds etc.
On a recent purchase on a $270k home in Kendall County, Illinois, total settlement charges came out to $7,475 - escrow reserves being $2,500 of it, 1st year of insurance insurance + pre-paid interest another $1,500.
There was also a seller tax credit of $7,500 which spanned from 01/01/10 to 10/15/10.