Man, there's a huge fg community in da'Burgh.
http://www.otbbicyclecafe.com might be a good place to start. Also, find out where all the messengers hang out as most of them ride fixed. I'd guess somewhere on the Southside. Meanwhile, enjoy this video. I posted it on another thread:
http://www.wqed.org/its-pittsburgh/watch A 48 year old guy on a fg w/45x22 gearing completed this ride. Pittsburgh Pro Bikes is a solid lbs. It's in Squirrel Hill, someplace...can't remember what street.