For what its worth, being a 'work-from-home' aircon fan and geek, and having spoken with a helpful Sentech techie, there is some sort of package for those who dont like debit orders and want to just do a monthly cash payment..
Added to this, I'm probably going to get the service ASAP, just so I can drop my phone bills (averaging R800+ per month, 99% of which are due to dialup net via Telkom) - so when I get it, I'll be happy to give feedback.. If the techie had his info right, and Sentech can supply me with the gear on the 19th, I'll be online and seeing the quality and be able to provide data here for those who havent done the leap yet..