Football and lean muscle

Hey, I just started using this site today and just wanted some help from other lifters deciding the best ways to get what I really want out of it. I'm an offensive tackle in transformation to a defensive end, and along with the 5 power-lifts a week, i try to get ab workouts in every night, and agility drills are starting soon. Since last year I've lost about 45 lbs out of just diet and the lifting. I'm still a pretty big boy at 231, but what i want is to put on lean muscle, not just lose fat. I'm afraid this site-along with my nazi like dieting-not used correctly will just cause me to lose the fat i could be turning into muscle and I'll turn into a kid that had a decent chance at a scholarship to an undersized, understrengthed highschool starter...

Any tips?

Fat cannot be "turned into" muscle. That is really a short-hand (and misleading) way to talk about the effect reached when dieting and working out; one's muscles tighten and, as the fat disappears, one looks leaner and has more muscle definition. But the fat has not somehow been transformed into muscle; it's just gone. You won't build much muscle while losing fat, either, because it takes a calorie surplus (of the right kinds of food) to do that. Go to the fitness site and post your question because there are folks on there who know a lot more about this and will give you excellent guidance. Good luck.