Welcome to MAB. You have a very solid foundation there. I too started with bodybuilding style split training, and have moved on to Strongman training.
The first piece of advice I can give you is to drop the small joint isolation and machine work in favour of heavier exercises that work the same muscles.
For instance, instead of triceps extensions I'd recommend dips. And if you do any wrist curls/calf raises etc, drop them too; they don't assist in building functional strength.
W.A. AMATEUR STRONGMAN
Axle clean-press: 100 kgs (220 lbs)
Bench press: 135 kgs (298 lbs) - 1st PL meet 16th October 2011
Deadlift w/Barbell: 180 kgs (397 lbs)
Deadlift w/Hexbar: 225 kgs (496 lbs)
Farmers walk: 240 kgs (530 lbs), 50 feet
Front squat: 100 kgs (220 lbs)
Log clean-press: 100 kgs (220 lbs)
Strict OHP: 85 kgs (187 lbs) 3 reps
Tyre flip: 260 kgs (573 lbs), 100 feet