yup, go to dpreview and learn about the cameras
I have the Canon G3, if you're choosing between the Sony's and G5...
I'd recommend the G3, the difference between the G3 and G5, which is very limited performance-wise. and it's way cheaper. And you won't get bored of it... you keep learning a little bit more everytime u use it. I've been using it for more than a year and I never touched my Sony's anymore.