Thanks everyone for the advice. I did finally find my 375 H&H, I purchased the Winchester Model 70 Safari Express and put a Zeiss Conquest 3.5x10 on it for all around use. After looking at the advice that was given here and the fact that it will not be used for dangerous game in the near future this seemed to be a good combination. I have only shot it a few times so far but it is a pleasure to shoot and I cannot wait to take it hunting!
Good luck with your shooting practice.
I'll be interested to read your reports over time on how the Zeiss does on the 375.
I have a 3x9 and it it sufficient,I am however fitting a 4.5x14x40 now,you don't say what you will be hunting in Africa but I assume you will be shooting plains game as well as big game.
remember the PH will have a back up rifle in case you need to make that close shot.
my suggestion go with a minimum of 3x9