Hi irishmike
i feel very sorry for you and i understand your sytuation, having "lost" 7 of them in the ~15 years of theyr lifespan (quite all due cancer or problems to the digestive apparatus)
We (as my family and our veterinary(sp)) have done some research about the food they have eaten along theyr (i have to say very happy) life. There are serious doubts about "some" pets commercial food ....argh!
Never more another pet.... at least from my side :-(