w. africa to s. africa by boat??

hi i need help, i live in the gambia and want to get to s. africa CHEAP... does anyone know is there is a boat going preferably from dakar, or the gambia (or ghana, cameroon, gabon) to south africa... a freighter or something that you can purchase passage on? thanks!

Yes, among others there is a freighter line from Valencia, Spain and Livorno, Italy to Cape Town via Dakar and Abidjan. Do not hesitate to contact me by e-mail.