Apart from the stalwarts (i.e. English Service, RSG, Radio 2000 & three indigenous stations), we have a choice of the following:
OFM (Regional FM Station, good on Sundays with Kevin Savage, otherwise varies from good music to crap)
Jacaranda (pick it up from the Lichtenburg transmitter at night & early morning only, tends to get boring)
5FM (yeah.... 'nuff said!)
Highveld (or 95.2 in our area, pick it up from Welverdiend Transmitter. Cannot stand the terrible twins who come on every night at 7PM)
One of the Afrikaans Regional stations on 96.1 FM (used to be Radio Pretoria, but it has a new name that escapes me at the moment.)
I have a World Space radio, but haven't used it for yonks, since they started charging for content.
-F_D