i want to draw a simple line between two objects and have some other object travel along these line .

after all i want to simulate a neuronstyle thing so...connect A with B aka draw line ....and send some signal(send a light? )along the linepath .

what would be a robust aproach to do this?

Well, you can't do any custom drawing (not ever going to happen), but you might be able to use the existing effect system to accomplish that.
I can point you to the http://www.uesp.net/wiki/Skyrim:Clairvoyance spell which uses the http://www.creationkit.com/Magic_Effect effect.

I'm not familiar enough with visual effects to give you anymore help than that...

No idea, but look at the Merdia deadric quest. All those beams of light in the dungeon should go a long way to doing what you want.

...and at some point you'll probably end up using the script methods TranslateTo, TranslateToRef, SplineTranslateTo, etc. If you do, just set the speed parameter somewhere in the hundreds. At 1.0, as in the wiki example, the movement is so slow you'll think it isn't even working.

those scripts will come in handy for the moving part ..thx.

i got the idea from that dungeon but i think all those beams are fixed aka just an object with some animation and therefor useless on anything else...but i will check that.