Belk is busy bulking up. Already the nation's largest family owned and operated department store chain, Belk operates about 300 stores in more than 15 states, following its purchase of the Parisian chain from Saks. Previously, Belk acquired Saks' McRae's and Proffitt's divisions. Belk stores are located primarily in the southeastern US and offer mid-priced brand-name and private-label apparel,...