1) "The Tenth Good Thing About Barney" IIRC. It's a children's book about the death of a cat, but it holds true for adults as well. Make a list of nine things that you loved about your cat, then add #10 - "and now (s)he'll make the flowers grow."

Then plant some flowers over the grave.

2) If you're in need of spiritual fuzzies, hit google for "The Rainbow Bridge."