South-By-South-West (SXSW) 2013 has just received a fresh injection of Australian talent. Dead Letter Circus, The Audreys, The Trouble With Templeton, Papa Vs Pretty, Jackson Firebird, The Beards, Jonathan Boulet, Clairy Browne & The Bangin’ Rackettes & a swag of Aussie artists/bands have just been invited to the world’s largest Music, Film and Interactive Conference,…