We suggest contestants find out who the judges are before attempting a Nyotaimori presentation. The ever-charitable RA Sushi in Plano will hold its first "Roll'N With RA" charity sushi contest 5:30 p.m. to 7 p.m. Thursday. Six non-profit organizations--Hunger Busters, the Susan G. Komen Race For The Cure, The Alzheimer's Association, The American Cancer Society, The Genesis Women's Shelter and The North Texas Food Bank--will create sushi rolls for the competition. Media judges are to score ea