Preheat the broiler. Bring a large pot of water to a boil.
In a skillet, melt the butter over medium-low heat. With a basting brush, lightly coat the scallops with a little of the melted butter. Season the scallops to taste with salt and white pepper, place them on a broiler tray, and set them aside.
Put the pasta in the boiling water and cook until al dente, following the manufacturer's suggested cooking time.
As soon as the pasta starts cooking, add the pancetta to the melted butter in the skillet and cook over medium-low heat just until the pancetta pieces start to turn golden, 4 to 5 minutes. Add the sun-dried tomatoes, stir, and cook about 1 minute more. Cover, set aside, and keep warm.
Put the scallops under the broiler and cook them until golden on the outside but still juicy within, 1 to 2 minutes per side.
As soon as the pasta is done, drain it and toss with the butter, pancetta, and sun-dried tomatoes, seasoning to taste with a little salt and white pepper. Arrange on individual serving plates or in shallow bowls, top with the grilled scallops, garnish with basil and chives, and serve immediately.