Broski, definitely go with Mark Riptoes starting strength. Its the 5x5 principle. Get in the gym, and lift big heavy shit for 5-6 reps, and watch the muscle grow like some kind of magic growing-thingy. But for reals, stick with squats, bench, overhead press, and deadlifts, lift that shit heavy and eat some meat.
Do sprints and some bodyweight stuff as well!