I ride in the suburbs with Central Bucks Bike Club--can't beat the roads and scenery along the river, both in Bucks & NJ--and with Surburban Cyclists Unlimited (Montco). SCU has Monday night rides from Wayne, if you're interested; check the SCU web site, surburbancyclists.org. Some years, I ride in CC at lunch time, looping around the museum.
I'm usually traveling between Wayne and the outskirts of Malvern (where I live and work). I actually bike into the West Philly area every so often because thats where my boyfriend lives, although I take the train in a lot too.