Manky, I am sure you will hear more from Anon. Now there is not much focus on Africa mainly due to the fact that its a hotbed of corruption, having said that I know many leaders from Gambia etc that work in top positions.
I find that African consultants seem to be overly enthusiastic and this is the downfall, the culture divide. Therefore I would suggest starting off with an organisation that operates in your country, getting to the TOP and then 'Moving' to another country.
I would reccomend Australia as it has the weather, or France as you will pick up the language and its sunny as well. If its the UK you will find it hard adjusting to the grey skies and the 60 hour week, well for the first few weeks at least.
I look forward to hearing of your further achievements.