Hey just wondering (completely off topic) How much money do you need to have for this sort of travel.
I expect Africa to push closer to $20k/year.
If you're interested in this kind of travel, checkout http://wikioverland.org - it contains all the logistical information you need to make a trip like this. (it's packed for the Pan-American right now, and soon to be loaded with Africa too)
[1] Full breakdown: http://theroadchoseme.com/the-price-of-adventure