Preheat oven to 375º. Spread pine nuts on baking sheet and toast for about 5 minutes or until golden. (Check after 3 minutes and stir.) Pour onto waxed paper and cool. Place Asiago, Fontina, Parmesan and cream cheese in the bowl of a food processor, and process until well blended. Add pesto (drain first if the pesto is runny). Pulse to incorporate. If mixture is too stiff, add half-and-half to reach desired consistency. Remove mixture to bowl and stir or work in tomatoes with your hands. When ready to serve, shape cheese mixture into a ball. Roll in toasted pine nuts, pushing nuts into the ball, if necessary. Garnish with fresh basil and slivers of sun-dried tomatoes. Serve with crusty bread, Italian breadsticks or crostini crackers.