If you like Secret machines you might like Lowgold?
Recommendations not SXSW related are Devotchka and 17 Hippies (oh and Nada Surf, more 'indie' than Indie, but the latest album is good).
But what does indie mean these days? It is all a bit fluid, really, and I think the term "indie" ceased to mean anything since the Oasis vs Blur "debate". I blame the Stereophonics. No reason to do so other than the fact they are the Stereophonics.
then again, R&B originally stood for rhythm and blues.
Indie originally stood for independant record label but then again, R&B originally stood for rhythm and blues.
Somewhere in my CD collection (now all ripped to MP3) lurk The Young Gods, Pale Saints and numerous other 4AD bands, Furniture, Snuff etc etc.