Short Answer: More than $200 billion

Long Answer: Africa's massive external debt burden is the single biggest obstacle to the continent's development and to the fight against HIV/AIDS. The over $200 billion that African countries owe to foreign creditors represents a crippling load that undermines economic and social progress. The All-Africa Conference of Churches has called this debt "a new form of slavery, as vicious as the slave trade". – Africa Action

Moist: Get a grip! I'm not sure if your rascist or just ignorant but in what planet has Gordon Brown taken cleared Africa's Debt? Debt releif to date has been little more than a sick joke.

On an unrelated note our economy is f***ed up for lots of reasons, none of which has anything to do with Africa. I would take the opportunity to educate you but i get the feeling it would be a waste of both our time.

 

The ultimate resource for how to consolidate debt