As far as the cheesesteaks go, I'd recommend getting the whiz wid. That is the cheese whiz with onions/peppers (so much for Enlish only).

The cheese whiz and grease congeals together for a tasty, savory treat, which remarkably has no effect on the arteries.

For the complete Philly experience, get a pretzel, a tasty kake, and wash it down with a bottle of Dr. Brown's cream soda.