Thank you for your reply Cecil. The cat is a female Siberian cat named Crash (her feet are furry and she had a tendency to crash into things when she was little) and she acts more like a dog than a cat. She sits on command and follows me around.
Edit @ pond: She does watch the sunfish I have in an aquarium and plot his demise.
So cool! I love both cats and dogs which I've heard is not common. Supposedly it's usually one or the other. My twin brother has a cat that looks like Garfield and acts like him too!