South African wanting to adopt...

I am an unmarried South African living in Switzerland. It's my hope to remain here, but I'm employed on a contract that ends in July, in which case I will have to retrun to SA. I have been interested in Russian adoption for a very long time and now I am finally at a point in my life where I can get serious about it. I have contacted a couple of agencies, all of which are based in the US and charge the GDPs of (not so) small countries just to get added to their client list, but finding information from other sources has been an excersize in frustration. Any information on where to go and who to speak to in SA (and Russia for that matter), the procedures involved, the cost and timeframe etc. would be beyond appreciated.