Hi, VivaLaEvie:
I read about many NYCers coming to the area after losing WS jobs in your neck of the woods.
Generally, Philly shouldn't take the hit as hard*, but housing is clobbering SEPA counties. Northern suburbs with a high portion of commuters to NJ will feel the impact. One saving grace will be the number of folks who work for the state of New Jersey, but live in PA (albeit faking NJ plates as necessary). They'll help the economy a bit, assuming NJ makes no inroads into curbing its insatiable state unions. Spending will slow, as in NYC, but not as deep and fast.
Check the real estate transactions during the last year for one perspective on your question.
Nobody buys a house if they're worried about their jobs, their spouse's job, or their ability to finance (in addition to the uniquely current issue that "prices are dropping so why should I buy?").
Go to Melissadata.com and check the free lookups for various zip codes. Check at least ten ZIPs with some money, like 19301, 19067, 19103, 18901 and then a couple of other center city zips, and count the number of housing sales for 11/2003-1/2004, 11/2004-1/2005, and compare to 11/2007-1/2008.
*Note: this is my opinion; I'm a nobody, I wear a size 7 1/2 shoe, and drive an economy car. Therefore you should make your own independent assessment. You can read some economic forecasts at
Putting Recession Into Our Forecast
Greater Philadelphia Chamber of Commerce | Listen to Mark Zandi, keynote speaker at the 2008 Economic Outlook Conference, on the Region’s Economy