I am fairly new to photography. I have a Canon g1 and I am considering upgrading to an SLR. I want to use the camera for larger prints at times. I would like to be able to make prints in the 36X48 to 48X48 range. I have read a number of articles about techniques to make these sixe prints. My question is, can I use an 8.0 or 10.0 megapixel for these types of prints? Will it make a big difference between 8 and 10 megapixels? Thanks for any suggestions.