Do it, 5/3/1 is great. No more thinking about training, you can just go lift and be done with it. Boring but Big is great for getting huge and strong, but if you try it, make sure your eating a SHIT TON of food, or life will be hell.
I'm currently using the layout that's in this article: http://www.T-Nation.com/free_online_article/most_recent/strength_training_the_college_edition
Basically, it's like this:
Deads, chins, row, ab work
Bench, overhead, shoulder pre-hab, ab work, curls if I feel like it
Squat, posterior chain, single leg, farmer's walks (or shrugs if I don't have the room in the gym)