O.M.G.
I have a Px90ish type DVD set....I just did shoulders and back....by the time the cool down (finally) came around....my arms were jello....
I particularly like this one thing he calls "7s". For your triceps, you hinge at the hip and do a basic kickback [nomedia="http://www.youtube.com/watch?v=GOeiqKL0jS4"]How to Do a Triceps Kickback For Dummies - YouTube[/nomedia] but the twist is you change your hand position from parallel to your body to perpendicular forward and perpendicular facing back. AMAZING....3 rounds of 21 reps....I feel like I can rip phone books....
Then a similar thing with biceps. Instead of doing full range of motion tricep curl....from the bottom do a half curl 7x..then from the top to half way down 7x then full curls 7x... 3 rounds of that...holy burn....
