Suitable cheeses include St-Moret and Gervais ("petit suisse" kind), or fresh goat's cheese. Whichever you choose, go easy on the salt, as these chesses are already salted.
To bring out the flavour of the nuts, you can dry roast them. Do this by putting them in the oven at 150°C (300°F) for 5 minutes. Leave them to cool completely before adding to the cheese.