Sunnehanna, PFC, and Fox Chapel are all obvious and good choices. Long Vue is less known but you'd probably enjoy it. But to break up the repetitiveness of the thread I'll suggest that you stop at Bedford Springs, which is about half way between Philly and Pittsburgh. Bring your wife but take two cars. You get to play a fun Ross and Tillinghast while your wife hits the spa, then you both have dinner at the hotel. Next morning you head to Pittsburgh and she goes home.