It is actually a bad idea to eat and sufficient amount of protein before a workout. As your pump goes, you will feel more tired due to digestion, especaiily becaue protein is sustained energy that, depending on what type pf portein you take, can take a while to digest.
I suggest an 300 calorie comp carb meal about 1 1/2 before your workout. than, i would take some type of eca 4 min before with 16 oz of water. Becausemy workouts are always around 40 minutes i use about 30 grams of simp carbs right before you workout. I usually just pour some sugar into 8oz water/gaterade and drink it. For all you supplement lovers you can waste your money on d-ribose.
Oh yea, don't drink your creatine before you workouts and try to consume 500-800 mg's l-glutamine AFTER your workouts within a creaglutamine cocktale (40 grams sugar) and a 50 grame protein drink.