It's time for some dance-floor Justice. With the deification of Dan Deacon, Feist?s Busby Berkeley in her video for ?1234? (judging from the crowd?s awkward rug-cutting at Deacon?s recent Mercury Show, maybe she should hold some free classes down at the Y?), and strong recent showings from LCD Soundsystem and Spank Rock, the summer looks like it could be a ...