Give them their own day or do chest/bis and back/tris. I recently started that split and can handle a lot more weight.
Biceps:
Chin ups! (palms facing toward you)
When you workout back, do bent over barbell rows (great for the biceps)
Standing olympic bar curl
dumbbell incline curl
Triceps:
Dips! (Keep elbows in and keep your body as straight as possible)
Skull Crushers
Pressdowns of some sort ( I like the V-Bar)
Do a good 3 sets of each exercise, staying in the 8-10 rep range.
And when you get home, do a burnout set(each arm) of masturbation strokes


kidding....