Any thing to help me with getting more exersice?

I am always inside playing my wii or typing my story on the computer. I would like to be more healthy, I am not fat, but I would like to be outsude getting some exersise rather than playing electronics inside. I live in wisconsin and it is snowy and rainy these days. Any suggestions on what i can do to break this habit? I get home from school at a good time to be outside but instead i go on MSN. I like basketball, and i hate to run