Power development without Olympic lifts
So for a while now I have been doing 5/3/1 with power cleans or power snatches before my deadlifts and squats (a lot like Gant's EZ program) and running 2-3 times per week for conditioning. The problem is that my university just got new barbells, replacing the old and rusty, but effective, ones with POS Hampton barbells. They're 30mm, the knurling isn't very good, and they don't spin well. As a person with average-sized hands, I can't hook-grip the new barbells, which really throws a wrench in the Oly lifting. I was wondering what I might substitute for Oly lifting to develop power. The only things I could really think of were box jumps or clean/snatch pulls with straps. Or should I just not worry about it and stick with basic 5/3/1? Any suggestions would be appreciated.