Internet/Broadband/Wifi at home (Johannesburg)

Hi,
I was hoping I could get some recommendations about getting wifi at home, so i can easily use Skype, Youtube, stream programs I miss from back home.

I read that there are lots of providers, and to avoid Telcom. Also, I don't think I have a phone line, is it difficult/expensive to get one put in?

Any advice would be much appreciated
Kind regards
Aroop