Stick Grasshopper Nymph

Thank you ForestD - that surely helps, i did not know this at all!

Smith'sZoo, yes, there are differences between katydids and grasshoppers, though they are related and share many similar attributes.

Katydids are Suborder Ensifera, Family Tettigoniidae.
Grasshoppers are Suborder Caelifera (and have a number of Families within).

One easy way to tell the two apart (which I apparently didn't pay attention to when looking at your spotting) is to look at the antennae. Katydids have long, thin(thread-like) antennae while grasshoppers have shorter antennae (usually shorter than body) with fewer segments.

Even though this is for North American species I think the info is relevant:
http://bugguide.net/node/view/16134 (Katydids, crickets and relatives)
http://bugguide.net/node/view/16133 (Grasshoppers)

There are a few other differences described on the links.
Hope this helps!

No not all. Im a bit confused now too. Is there a difference between katydid and grasshopper then?

Oh my! It certainly does look like the Common Stick Grasshopper! I really shouldn't be making suggestions when I am tired. I misread your location. No wonder I couldn't find it! I just love this grasshopper! *so embarrassed

http://www.birdingafrica.com/birdingafri...
even here it is. I think this is the one - but i got the nymph like you suggested ForestD

http://www.ispot.org.za/node/148077

Common Stick Grasshopper (Acrida acuminata) feeds on grass a variety of grasses. Large - body length about 50 - 60mm.
http://www.zandvleitrust.org.za/art-ZIMP...
This is a hopper from our area? Do you think this might be it, although the ID suggestion and all your links ForestD are very similar

This is a really interesting looking katydid!

This may be a Mimicking Snout-nose Kaytdid. I can't find an exact match but I found a little info and a couple similar katydids:
http://australianmuseum.net.au/Mimicking...
http://www.whatsthatbug.com/2010/04/11/u...
http://www.ozanimals.com/Insect/Lesson%2...
This one is a nymph.