Learn to roll your own. No, not that. Roll your own sushi, and taste five different sakes at the SUSHI AND SAKE CLASS at the 12,000-square-foot SUSHISAMBA rio restaurant. The chef's primers will include how to buy raw fish and make the perfect sticky rice. Handouts will be given, in case the sake impairs your note-taking skills. Saturday Feb. 19,2005 from 2:00 p.m. to 4:00 p.m. Class is $60 per person. 504 N. Wells, 312-595-2300, http://www.sushisamba.com