"Pumpkin" beers made with actual pumpkin? It's about that time of year again, when pumpkin flavored beer (and everything else) starts making its way onto store shelves.

I was wondering, what pumpkin flavored beers are out there, if any, are made with actual pumpkin and not just pumpkin pie spices?

My personal favorite is Pumpkin Head by Shipyard, but I've been unable to find any evidence that would suggest it is made with real pumpkin. Are there readily available beers made with real pumpkin? I live in western PA, but any brand not specifically available here would be good to know.
I drank once Post Road Pumkin Ale from Brooklyn brewery that is brewed with, to quote them, 


  Hundreds of pounds of pumpkins [...] blended into the mash of each batch: Post Road Pumpkin Ale