Dinner near the merriam Theater
There are so many wonderful places on 13th street, between Walnut and Chestnut. Some favorites are:
Zavino: Pizza + wine
The Corner: New American
Barbuzzo: Mediterranean small plates
These places are not necessarily upscale but the food is very good and the environment convivial.
And lots others. You can check out the Midtown Village website:http://midtownvillage.org/
I haven't been, but if you want something more experimental, Sbraga is supposed to be great: http://sbraga.com/
It's a $50 prix fixe always I think.