I am in the same boat as not haveing bicep as big as I want, but my tris are pretty impressive. I really have seen some good growth in biceps. I started to use exerscise from Arnold's Bible. I start with slow preacher curls with Hammer Strength. I really feel the pull and it quickly blows them up. I then go to straight bar and superset dumbells. Inside 3 sets and outside 3 sets. Its a really good start. from there I vary my routine.