Kim,
You can get the Wysong dry food at Petco it sells for around $30 for 20lbs. But it is packaged in five 4lb bags to help keep it fresh, I just bought one 4lb bag to start of with. The wellness canned food I think you would have to look around for it because I know petco and petsmart don't sell it. I'm getting it from my boss at the pet sitting agency, she also has a pet food delivery company. Wysong has several different dry food fomulas like one for cats with allergies, a kitten formula, one for cats that are prone to urolithiasis, I have no idea what that is I think it has something to do with the unirary tract but since you have lots more experience with cats I'm sure that you would know! They also have a few other formulas.