The Pitchfork guide to SXSW includes tips on many acts, including Scandinavians Serena Maneesh (natch), Figurines, The Ark, Sign, Disco Ensemble, Astrid Swan, Quit Your Dayjob, Animal Alpha, Sarah Hepburn and of course, José González. I'd also recommend tracking down Loney, Dear and Kristofer Ĺström.