PIXEL ENTERPRISE LIMITED a professional photographic accessories manufacturer in Hong Kong came up with a wireless flash trigger and receiver for Nikon Flashes useable as well in TTL mode.
More on the website of Pixel enterprises I got a sample of the unit and will try some shooting at the weekend. Will see how good it will go to its paces. Much cheaper than most other brands and with the TTL advantage it should be feasable to adjust things very easily. We'll see!
Another reliable pcket wizzard eqivalent I got my hands on is the brand Phottix which don't support TTL but works very fine in manual - which by the way should be the way to learn. If you can handle it manually you can be sure to understand your settings and the upsoming difficulties better than on any "auto" mode.