>Although most Europeans speak English, they learn German
>before that so this would be your most beneficial move.
That counts for some countries. In the Netherlands, children start learning English and German at same time. English because it is the main language in the world and German since it is the language of our neighbour country.
But I wonder if the French learn many other languages. I've been there several times, in the cities the French speak English quite well, they don't speak (or don't want to speak) German. But on the countryside, people only seem to speak French. Only the younger people know some English.
>but if you start speaking Aafrikaans is Germany they understand you
A prof of mine on university was from South Africa, Afrikaans sounds and looks a lot like Dutch. He regularly spoke Afrikaans and it was easy to understand, he also showed us an online newspaper.
www.beeld.com
Russian is sure harder to learn. Though it might be interesting to learn Russian, since this huge country is getting more and more important in science, technology and economics. Especially for Europeans it is getting important in economics.