Here's a quick list of the excercises I use in the gym and some of the events I've found it helps over the years.
Clean and Jerk
Zercher's from the bottom - Stones, Logs, and Conan's wheel
Front Squats - Presses, tires, stones, truck pulls
Dumbell Press w/log grip - Log and Viking Press
Dumbell and t-bar rows - Any item that needs to be picked up
High rep leg presses (25 reps MINIMUM) - Truck pulls
Shrugs - Farmer's and anything else with the grip
Reverse Hypers - Deads of any kind
1,2, and 3 minute windsprints - All event endurance, ONLY on Squat and Dead day, otherwise there recovery will not be enough
Rep schemes vary depending on the show. Core exercises go between 5 reps and singles (once a month at the MOST), assistance work is between 8 reps and 3, unless noted otherwise. Windsprints suck, but are essential if you want the endurance to finish your events. In addition, I do some type of ab work anytime I'm in the gym, 5 days a week offseason, 6-7 when preparing for a show (I do events 1-2 times a week the last 8 weeks before a show).