I should clarify that I meant you can get the D90 twin VR kit for R10,000, and possibly even less now which makes it a good deal.
Saving money up front on the body always helps with future lens purchases that WILL ALWAYS HAPPEN (and the D90 is still a great body, so it's not as if you're skimping).
The 18-200 VR II is a better lens than the combination of the 18-55/55-200 kit in my opinion, but probably not significantly better image quality to justify the extra R5000 for it, and also you're not getting any extra use/flexibility: your range will still be 18-200 whether you go kit/single lens, and the speed is the same (f3.5-f5.6). Changing lenses is usually not much of a pain - you get pretty quick at it after lots of practice.
If you went for the two kit lenses, and used the R5k you saved to pick up either a 35mm f1.8 prime, or Sigma 10-20, you'd have a much more versatile kit.
So if you're happy to go with the D90, that kit combo is probably the way to go.
It's close to the end I think, but is not yet discontinued. It appears Nikon have chosen to drop the D5000 instead and move the D90 into it's price slot for the moment.
From what I've read on the web, they've stopped manufacture of the D90, and it will be officially discontinued once remaining warehouse stockpiles are distributed (they don't announce discontinuation when they cease manufacture because it hurts sales of the unsold bodies). But that's actually good news, because it means there will be deals galore until all the D90's are sold out.