OK. I'm a super newb at photography. I got a Canon A95 about 2 months ago and I've been just snapping pics left and right using the simple modes. I know to take some really nice picture i need to learn how to use the manual modes. My question is this. Where is a good place to go for imormation on choosing what settings to use in what situations? I don't know what ISO or all the other little things do.