Jodi King - unsigned, from Canada. One of my newest and best discoveries.
http://www.myspace.com/jodiking
Brooke Fraser - been around in NZ for ages, about to crack Aus. Perfection in a voice. No joke. I've loved her for years.
http://www.myspace.com/brookefraser
Colbie Caillat - cracking America atm. Found her on myspace, on the featured artist space thingo.
http://www.myspace.com/colbiecaillat