Though he shies away from the term "artist," that's exactly what Wilmette resident Dennis O'Malley is. O'Malley, 72, retired six years ago from a computer equipment sales job and fills his free time by practicing a centuries-old printmaking technique called aquatint.http://www.pioneerlocal.com/wilmette/lifestyles/currents/2471230,wilmette-artist-070810-s1.article