Once you've chosen your country of choice, keep in mind that like the circular Fondue Pot, you can create a conversation pit/circle in your home by simply setting up your serving tables likewise.
If you have a fireplace, use it. The warmth of the hearth will buttress the coziness of the cooler season.
Leave the chairs behind and place large pillows around the fondue table. Encourage your guests to remove their shoes, which puts them in a relaxed mood and takes off a certain social, hierarchical edge as well.