If you are looking for professional photos of various scenes of Philadelphia, check out Cyndy Drue's website!
She's got great Philadelphia photos, among other subjects. There are also photo greeting cards, one of which was the winner of 2003 greeting card competition at the Philadelphia Museum of Art! This is a great gift for people who are leaving Philadelphia, something to help them remember the city by!
You can contact the artist herself with any other requirements, or possibly, commissions.