Come 12:01am on Monday morning, downtown Austin will be a madhouse of drunken revelers and even drunker artsy types. You could opt to shell out plenty of dough to get into the swanky parties, but why bother? You probably won't remember it the next day. Below are our top choices for fun things to do this New Year's Eve, all with reasonably-priced cover charges and, more importantly, within stumbling distance of one another. Get there......