What alternative pet should I get, too heartbroken to get another cat anytime soon.?

After a long and happy life, my cat had serious liver problems (perhaps from that tainted pet food scandal) and recently died and broke my heart. I spent a fortune at the vet and hand fed it and subQ hydrated it and gave it medicine etc, but it prolonged its life only so long. I wish I could have saved it longer. Now I don't want to get a new cat in the near future. What else should I get?