Anon;
It’s near impossible to get a physical copy of Only See. It was an album that sold 1200 copies. (And if you ask Sia, is an album that she sung very off tune :P) If you keep an eye out, occasionally you may find a copy being sold on eBay or the like … but you’ve probably got more chance of finding someone who has uploaded it and can send you the file (try forums, etc.)
If you’re into Sia’s early stuff, keep an eye out for the band Crisp, also.
