Sports, such as basketball, will help. For me, it simply works as
high intensity cardio. Which is all your gonna need if you just wanna drop bodyfat. The difference being, your not gonna have results as fast. Muscle burns fat...plain and simple. But sports such as basketball, football, etc. - will definately bring up your
leg strength. And you can try simple body weight excercies for now. Do push ups, crunches, etc. Invest in a pull up bar. That kind of thing, until you can possibly get access to some more serious weights.