One of my kitties, Meeko, has been diagnosed with a problem requiring a special veterinary diet which unfortunately is really expensive - I'm looking to possibly cut costs on the other kitties' diets to accomodate this, but without sacrificing quality - currently they are eating California Natural, but I have heard Nutro Natural Choice mentioned on this board before as a good food - is this true? Is it comparable in quality to California Natural? If so, is there a reason that Nutro Natural choice is so much less expensive? Any advice about this food would be totally appreciated, thanks!