Ok I'll try my best to tackle each of these issues individually.
Tell the hippies to go smoke a joint and leave the technical details to people who are qualified. Nuclear power stations will not give their kids three fingers and six eyes, that's the marijuana speaking.
Introduce competition so that we have ample power stations available. Fire Alec Duhwin.
[edit] After reading imajin's post below, I agree that funding alternate sources of energy would be a very good idea.
Water supply and pollution
Introduce more sanitary facilities to areas that pose health risks. Make it known to people that taking a crap in a river will not be accepted, and anyone caught will face arrest.
Introduce performance based packages to people in charge of water purification.
Unbundle the local loop ASAP. ICASA should be court-ordered to uphold their mandate. Fire Ivy. Government should not be allowed to be majority shareholder in a private organisation.
Financial instability and our financial future
I don't think there's anything wrong with our economy. Rand/$ is not an accurate indicator of the state of an economy.
Racial divisions (lets be careful with this one now please - was in two minds about posting this one but it is relevant)
Nothing we can do, people are set in their ways. All we can hope for is that they don't force their views onto their children.
Increase the police workforce. New recruits should meet minimum educational requirements, in addition to being properly trained and further educated after being accepted. Most importantly, give our guys an incentive to do their job properly (and without corruption) - pay them a decent salary with which they can support their families. They are, after all, putting their lives at risk in order to protect ours.
As with the police force, give people the proper motivation in order to train as teachers. I know of many people who would have loved to have been a teacher (it's one of the most emotionally rewarding careers), but have shied away from it due to the lousy salary.
Service delivery
Accountability of our politicians
Corruption
All these relate to the same thing. Accountability can be introduced via jobs that are performance-based. You don't achieve a certain target within a certain period, you don't get paid. Fail three times and you get fired.
With respect to corruption, harsher penalties should be imposed on politicians than on civilians. For example, a corruption charge should be an automatic life-imprisonment sentence, no matter how small. Or something equally harsh that would deter corrupt politicians. Another example could be a 20 year community service sentence, at minimum wage.
They should stop all the bitching, unite and share views on the way forward. I'm tired of the ANC's crap, but I'm also tired of the DA's constant moaning. The DA should accept the fact that they will never win much power for as long as they don't have a black leader (the majority are simply too paranoid to reason otherwise). The best way forward is a merge between the DA, IFP and UDM, and elect either Holomisa or Buthelezi as the head. The DA would still have plenty of clout within the party so there's nothing to fear about who leads it (after all it's mainly about showing the public that you can have a racially integrated party that works)
Disparity between social classes
Capitalism at work. If people want to uplift their social standing, they need to work for it. There's only so much that can be handed on a silver platter.
Affirmative Action and BEE
The concept is a good one, the implementation has been bad. Anyway recently, I seem to have noticed that things have eased a bit wrt AA/EE. A search on careerjunction yields maybe only 10% results that are AA/EE only.