Some of the ones with a swivel screen can be used left handed...
Aiptek, Sanyo, and others make them.
The screen has to be swiveled "flat" and viewed from above, or pics taken "blind", for left hand use, but it works...
http://www.letsgodigital.org/en/came...19/page_2.html
This Aiptek will work (Pocket DV5300) but is discontinued....might be hard to find.
It's screen rotates 180* in all directions I think...it certainly rotates out of the way of the controls..