With warm weather arriving in the northern hemisphere, our thoughts turn to refreshing whites. One varietal that fits this profile and offers terrific value is Sauvignon Blanc from New Zealand. With plenty of citrus and tropical fruit flavors and bright, mouthwatering acidity, these wines are perfect for picnics and barbecues. And don't forget New Zealand's other white grape: Chardonnay. It can also be a good bargain.