Southern Italy and Sicily are home to some of the best cheeses in the world. Village Voice food critic Robert Sietsema wrote a guide to Italian cheeses for Epicurious that is well worth checking out. Although his locations and purchasing picks are New York-centric, both NYC and Philly share a common stock of immigrants from the same regions of Italy. In South Philly, the cheesemongers of the Italian Market are good for obtaining cheeses like the chile-rolled calabrese and homemade caciocavallos.
What a friend we have in cheeses [Epicurious]