Good luck! Most PetValu's have sample bags, did they give you one to try? It's much cheaper to try a new food that way!
Just another thought, too... do you have a Global or Ryan's pet food store near you (same company, they go by one name in some areas and the other in other areas)? They have tons of sample bags for a wide variety of foods, too. I swear I fed my pup for free for quite a while with the samples they gave me to try. I know there aren't quite as many samples for cats as there are for dogs, but they still have quite a few, if you're trying to conserve money it might be worth trying samples first until you see what agrees with your kitties.
I hope Fagan likes his new food
.