I am doing a three-day-a week strength training program that a friend suggested and it is definitely working as I have increased my bench to a personal best 265 and am able to also do a personal best 19 pull-ups. Although I am getting results, I get stir crazy on other days and feel like the 3 day per week schedule is just getting to be too easy. Anyone have any strength programs that are working that are at least 4 or 5 days a week?

why would you want to change something that is working? When it stops working, then start worrying, but not now mate.

Agreed. If anything just increase the intensity of ur workouts. less rest and get ur buddy to help u get those last few reps(u'll need his help lol)