When I run a TVFool.com scan on your on your zip code, it tells me that you have an obstructed view of the Empire State Building in your area, but it's hard to say exactly how bad it is without your exact TVFool.com report: If you would kindly go here:
http://www.tvfool.com/index.php?option= ... &Itemid=29 , put in your information, and post the results, we can better determine what you'll need. I believe that you'll most likely need a fringe-area VHF-high-band plus UHF antenna to see NYC, but whether or not Philly is available to you remains to be seen.