Ritz-Carlton Ballroom GalaStart the evening with a cocktail, caviar, and hors d'oeuvre reception; follow that with a five-course dinner, dessert and wine pairing, and dancing to the sounds of Encore. 7 p.m., Monday, Dec. 31; $275. Ritz-Carlton Hotel, 600 Stockton (at California), 773-6198.
Robert Walter's 20th Congress Jazz funk keyboardist and his band return for another New Year's at the Elbo Room. 10 p.m., Monday, Dec. 31; $20. Elbo Room, 647 Valencia (at 18th St.), 552-7788.
San Francisco Symphony New Year's Eve Gala Ring in the New Year with a concert, party favors, champagne, savories, and desserts. 8 p.m., Monday, Dec. 31; $87-$145. Davies Symphony Hall, 201 Van Ness (at Grove), 864-6000.
Sea of Dreams 02: Dive-Ocean Anon Salon presents an all-night musical and visual journey through multiple dream worlds with exotic dancers, techno video, laser artists, and circus and fire performers. Featuring Lost at Last, Brain Garden, and Foxgluv. Come dressed as your dream. 9 p.m.-4 a.m., Monday, Dec. 31; $60. Regency Building, 1300 Van Ness (at Sutter), 978-2345 / www.anonsalon.com/seaofdreams02.
The Search for Signs of Intelligent Life in the Universe: Acclaimed actress Lily Tomlin stars in Jane Wagner's comedy, in a special New Year's Eve performance. 8 p.m., Monday, Dec. 31; $35-$50. Theater on the Square, 450 Post (at Mason), 433-9500.
SF Chamber Orchestra New Year's Eve Gala Concert 16th annual performance of classical favorites. 8 p.m., Monday, Dec. 31; $15. Julia Morgan Theater, 2640 College (at Derby), Berkeley, 510-845-8542 / www.juliamorgan.org.
SilkDelicious Karma presents a New Year's Eve party with music by Miguel "Migs," Mauricio Aviles, and DJ Seven. 9 p.m., Monday, Dec. 31; $99-$229. The W Hotel, 181 Third St. (at Mission), 777-5300 / www.deliciouskarma.com
The Star 101.3 Ball Featuring Tainted Love, Pop Rocks, and DJ Steve Masters. 8 p.m., Monday, Dec. 31; $45-$95. San Francisco Design Center Galleria, 101 Henry Adams (at Eighth St.), 267-6926.
Steve Kimock BandCutting-edge improvisation from the Bay Area guitarist. 9 p.m., Monday, Dec. 31; $50 (tickets available at venue box office, or by fax: 885-5075). Great American Music Hall, 859 O'Farrell (at Polk), 885-0750.
Superhero's Costume Ball Peak Experience Productions joins with the String Cheese Incident and Keller Williams. 8 p.m., Monday, Dec. 31; $60. Bill Graham Civic Auditorium, 99 Grove (at Larkin), 303-544-5875 / www.sciticketing.com.
True Fiction Magazine Improvisational Theater San Francisco's popular improv troupe returns for its annual New Year's Eve show. 8 p.m., Monday, Dec. 31; $20. Florence Gould Theater at the Palace of the Legion of Honor, Lincoln Park (near 34th Ave. and Clement), 824-1559.
Unity Christ Church New Year's Eve Dance Party With swing dance lessons, live music, tarot readings, and food. Children welcome. 9 p.m.-1 a.m., Monday, Dec. 31; $20-$25. Unity Christ Church, 2690 Ocean (at 19th St.), 566-4122.