If you went out and got yourself a pullup bar (they sell ones that extend through an open doorway) you just might be off to a good start.
If you're not headed to a gym; try doing this workout 3 days a week.
Pullups, Pushups, Lunges, Bent-over dumbell row, overhead shoulder press, dumb bell squat. And maybe one day a week toss in a bicep curl/tricep extension superset.
Get your self a jump rope and jump rope between sets, or after your workout and hit the ground running.
As you develop muscularly look into a bench press/weight plate investment. A bar and bench can be used not only for but for bent-over row, upright row, overhead press, squats, lunges, bicep curls, tricep extensions etc. It is a very versatile piece of equipment. An olympic bar, bench and pull up station will give you what you need for a very well rounded workout.