Link to Steve Brown's home page with a FAQ (frequently asked questions) on paper modelling, pictures of some of his models and an excellent list of contacts and links:
Suppliers I have ordered from: (none that I know of in South Africa), see FAQ above for other suppliers:
Mowe (Wilhelmshaven - Germany): http://www.papermod.de
Scheuer und Struver ( Hamburg - Germany): http://www.moduni.de/
Other links:
Saul's Page: http://www.teuton.org/~saulj/
GPM(Polish): http://www.gpm.pl