Following are web sites that may help you in planning your expedition. I have tried to describe each site so you may use them depending on the location of your travels. Please let me know if you find any other sites that you think are helpful in planning your travels and I will add them to the list.
South African Information
Fact Book: Information on South Africa:
Center for Disease Control (CDC): http://www.cdc.gov/travel/safrica.htm
The World Clock Time Zones: http://www.timeanddate.com/worldclock/
The Universal Currency Converter: http://www.xe.com/ucc/
Country Calling Codes: http://www.countrycallingcodes.com/
Air Travel - Prohibited Items: http://www.tsa.dot.gov/public/interapp/editorial/editorial_1012.xml