quite a few things you could do bro...

Check this one out: Bill Starr 5x5 - Madcow Intermediate or Linear Version

or this:
Vince Gironda 8 Sets of 8 Muscle Shocking Program - Bodybuilding Workout Routine

or even:
TESTOSTERONE NATION

All of these are good routines bro, but really it all comes down to diet, dedication, and the willingness to push your self harder every time!

Happy growing!