I am thinking about switching cat food due to my cat's bathroom habits with Natural Balance and I was wondering if anyone has any experience with Felidae dry cat food? It seems to be a good choice and not too outrageously priced. My two cats are indoor and don't get too much activity so I don't want to make them too fat with regular food. I try to feed them less per day but they get really upset when they don't have food and throw their bowls around. Any other ideas of a good cat food that isn't too expensive would be wonderful too; preferably one that eliminates hairballs. Thanks for any advice!