Dominic
I'm sure you are taking along a lap top to download your videos and images. I always take TWO (2) (double backup) portable hard drives. Costco has 2 TB and 5 TB. I buy the 2 TB and back up after morning game drive and after afternoon game drive to both hard drives. Also, take a decent length extension cord with lots of plugs. You will thank me. Some of the camps do not have electricity in the tent and you have to share a common electric source in the main camp structure with other guests. Some camps are on generators only.
I'd like to know what camps your are going to in South Africa. I am pretty familiar with some of them, I could give you some hints. I also have lots of Africa video and images if you are interested, write me on the private conversation.
Dale
Miami