I was a part time pro wedding photographer for several years. I gave it up a couple of years ago.
I never did video. I have never liked it.
I used two bodies. a 1DsIII & a 1DIII. I felt the dual memory cards was a must. I once had a card fail and fortunately had the backup. That was about 1,000 images saved. I also felt it a MUST that both bodies were identical so the operation was the same. No missed motion figuring out which body I was using.
My wife as second photographer used a 5D. I had a wireless flash trigger with a 580EX on top of it and more on light stands set around by my wife.
Lenses; Canon EF 24-105mm f/4L IS USM, Canon EF 135mm f/2.0L USM, Tamron 45mm f/1.8 Di VC USD & Canon EF 70-200mm f/4L IS USM

Now I enjoy this equipment for my personal use
Mark
https://www.facebook.com/pg/Mark-Cle...os/?tab=albums