Unfortunately there is a huge amount of politics involved in a defence procurement...
The Turkish Air Force made it very clear that the Rooivalk beat the Mangusta, SuperCobra and Tiger. (Apache never considered on cost grounds)
The Mangusta version that got selected by the politicians only exists on paper...a souped up version that will only be available in 5 years time!
Why? Turkey is bending over backwards to gain support for it's campaign to join the EU.
In the mean time they will "lease" old Apache's....
KDY
I can confirm that Farmpilot is correct. The helmet mounted gun sight system in the Apache was developed in South Africa and licenced to the US.