I entered Namibia via the Caprivi strip from Botswana with no problems, the convoy kicks off at 9:00 in the morning and takes about 2 hrs, the road is good tar all the way, speed is around 60 - 70 mph, stayed at Engepi lodge at the Western end of the strip.
Next day travelled onto Rundu a very hot and dusty town with a couple of good campsite/lodges needed spairs for our vehicle (peugeot) and was able to get them next day delivery from a dealer here.
From there onto Tsumeb ready to enter the Etosha next day.
Spent the next 5 days in the Etosha game reserve and it was fantastic, absolutely teaming with game, Namutomi is the best camp although none of them are great for camping (little shade and dusty ground), Halali camp is worth avoiding for this reason but in my opinion had the best floodlit waterhole, going onto Okaukuejo camp is recommended, 4x4 is not required for any tracks in the dry season.
Next stop was Swakopmund a Bavarian style town, cool weather, very civilised and lots of adrenalin activities available.
Then travelled across the desert to Windhoeck for more vehicle repairs, then on down to Mariental and onto Keetmanshoop and out into RSA.
Namibia is well worth visiting, all roads are good, (even the dirt ones, 4x4 recomd for the desert sections East and South of Swakopmund) the local black population I met is friendly although they come across as rather nonchalent and uninterested (unlike other African countries they are not in your face) I gather the main black population is in the North West of the country.
The local whites are Namibians (from German descent or from RSA).
Namibia has a good infrastucture and is modern in a lot of places.
I took 2 weeks on this leg but 3 - 4 would be ideal.
Namibia really is a stunning country with some awe inspiring scenery along the Western side.
Fuel and food is cheap, accommodation (hotels, lodges) were not so cheap (but camping is).
There is no black market for money and the Namibian dollar seems to follow the South African rand in value, SA rands are acceptible everywhere in Namibia, but not the other way round.
Hope that helps.
Phil J