I live in Southeastern Pennsylvania (but not Philadelphia) and am
currently pre-approved for a mortgage from a Very Reputable Mortgage
Company for 190K. I am trying to determine what would potential
closing costs might be. I have heard from the Mortgage Company that
Closing Costs can be up to 15K. A friend said closing costs can go up
to 35K. What I am looking for is an itemized list of what goes into
closing costs and potential value attached to Closing Costs. Let’s use
an example where I would like to purchase a house worth 180K.
Potential Closing costs would be:
1) Down Payment of 10%= $18,000
2) Pay Taxes upfront for the first year=Approx $2000
3) What else....After here I am clueless! 

I would like an answer that would complete a potential itemized list
based off experience or knowledge.

I would also like any links that fully explain or document other
examples of closing costs. Hopefully these examples will be purchases
of homes between 150K and 200K.

Please let me know of any clarifications necessary. Thank You!

I recently bought a house a little higher than your price range in
eastern PA. The closing costs total (not including down payment or
mortgage points) were around just under $8,000.  There is a 2%
transfer tax in PA which is split between buyer and seller, you have
to escrow taxes and insurance, and there are several kinds of
documentation / inspection / appraisal type fees.  If you have been
approved for a mortgage, the mortgage company is required to give you
a broken down estimate of all closing costs within a few days of your
approval.

One big fee that I forgot to mention is title insurance which is
required by your mortgage company.  This is about 1% of the cost of
the house and is set by law.  Every title insurance company will offer
you the same exact rate.  (This cost is included in my $8K figure
mentioned above.)

This information should have been made available to you by your
lender.
It woulf be a "GOOD FAITH ESTIMATE" and is REQUIRED by law to be
signed by you within 72 hours of your application.
Please check to see if you received.

Technically we were pre-approved. (Not Pre-Qualified which holds
lesser weight)

We did not accept any mortgae from any mortgage lender, therefore we
did not receive a list of pre-approval costs!

I did email both Associates from the mortgage company for a detailed
itemized list.  (so far no response)

Thanks for everyones help and suggestions!