I've heard there is a very cool 3G Netgear Router at Incredible Corruption going for R1400.
The beauty of this baby is that is runs on the speed of the USB stick you plug into it, so if the stick modem is 21Mbps, you'll get 21Mbps from your router. (runs on the USB speed). Futureproof for South Africa.
Stay away from Netgear for 3G USB modems - their support is terrible and only very few (and only older ones ) work !
Netgear generally make good kit, but avoid like the plague for USB 3G modems. There is a new one with built in 3G, I have no feedback on this model yet.
Go with TP-Link, you will not be sorry!