Eternity protector king

Another one seeking opinions for buying digital cameras? - smallest and slim photo scanner

Are you looking to spend up to $ 300 +. I would like to use something very simple, it takes quality photos, is at least 6 megapixels, and is small / thin.

I do not know if I am around with my choice, but one that I researched are:
Canon SD 600 or 800
Panasonic Lumix DMC-FX50
Casio Exilim EX-Z1000
Pentax A20

What is my costume early and later are closer to $ 300?

Thank you!