(ANTI-NEW YEAR'S PARTY) If the name of the event seems grandiose, take this: I have it on good authority that this will be the best night of your life. With music by Harvey Danger, "Awesome," John Roderick, Love Hotel (last show ever), Jacob James, Gavin Guss, Levator, and the All-Girl Comb Choir, plus comedy by David Schmader, Champagne, and Black Daisy, tonight's variety show is energized by the premise that New Year's is always a drag, so why not celebrate a night early instead? The inimitable Sean Nelson hosts. (Chop Suey, 1325 E Madison St, 324-8000. 9 pm sharp, $8, 21+.)