I use standard US keyboard layout. Works good for typing pinyin Chinese, if you know the pinyin for it. Did try learning Dvorak but reconsidered it as all the keyboard shortcuts Ctrl+C Ctrl+V Ctrl+X would all be in different and possibly inconvenient places so I'm still sticking to Qwerty.
PS: I might be able to change to dvorak and modify keyboard shortcuts possibly something like Stefan Bauwens did
@epic7: would take a while, but possibly not too long.