I lived in Italy for a while and now that I'm in Georgia, Toscano and Sons Italian Market is an Italian mecca and my saving grace. It's owned by an Italian-American family who truly have a passion for Italian food.
The walls are decorated with flags, maps, and paintings. The soft Italian music relaxes your senses. And the food is to die for.
The market offers a large variety of rices, oils, salts, cheeses, meats, pastries (cannoli!), dried pastas, gelati, limoncello... you name it.
Make sure to try the spicy capicolla and the sopressata. Get their ciabatta bread, their truffle oil, and one of their cheeses for the perfect grilled cheese, or buy one of the panini they make on the spot. If you're picking up something to take home, you should try one of their frozen pastas.
My boyfriend and I have taken to making what we call Italian sushi—rice filled with crunchy pancetta, wrapped with prosciutto, and topped with Parmigiano-Reggiano—with their products. (Sorry about the low-quality photo of our sushi.) This is also where I go to get treats for my Italian students.
Best of all, once in a while they host free wine tastings where you sometimes also get free cheese or chocolates.
This was the first place I ate at when I moved to Georgia and I've been going back weekly ever since. (They closed this past summer in order to move, but are about to reopen at the address I gave for the highlight. Check the website for updates.)