I am going to buy a food processor and have decided on the Cuisinart Prep. But I don't know whether to get the 7, 9, or 11 cup size. I want to be able to store it away when not in use, so it would not be sitting permanently on my countertop. For this reason and because I am not that strong I do not want it to be too heavy. It is just me and my son that I cook for so I usually don't make a lot of food at one time. However, I have read reviews on food processors that say not to get one less than 11 or 12 cup size. Grating cheese and slicing vegetables would be my primary uses for it so it should have a good-sized chute. Any thoughts? Thank you.