Ok Ok, im really going nuts here. I have absolutely no experience with animation, riggin etc.
So i read and read but it seems i can't find the proper info i need to make this rigg that i want.

Ok ok, here is a pic of the object that i need to rig.
This is some monster that i made, the client insist that i should do the animation and rigging, because he is a cheap motherfoker ... But never mind this, i gotta make it...

So, i try the simple solutions that come with XSi - Create spine, create Tail etc... but they dont work as i need them.
I managed to rig it with Tail, but this thing is kinda simulated ? And i just can't figure out how to put some control point's where i need them to animate this rig.
The spine just dont behave like i want it to. It has 2 control points and its a pain in the ass/ impossible for me to create this snake-ish motion.

So what i need is something like this on the picture - a couple of bones and controllers (in the red). So when i move the controlers i get this smooth chain movement, like for example in the Spine rig that comes with XSI.

I feel like its a simple rig ??? Am i right ? Please someone, give some info/tutorials/ or just explain how to do this.

I found this tutorial, made back in 1912....http://www.youtube.com/watch?v=1TLchsw9ty8
But seriously, i can't understand what and why this guy does but making so many different Nulls
Please, help guys!

I'm not an expert on what you're trying to do but you could give MT_spring a try.

If you draw a curve with 4 or 5 points along the length of the limb you want to move, you can use a couple of options under the animate/create/skeleton menu

First create chain from curve - small number of bones (to match number of points in curve). Don't constrain to curve.
Second create control spline - high number of divisions.

The parent the light green diamonds to the nearest bones, and animate the bones in FK, you will get a spread along the length of the curve. If you want to get more detailed you can animate the position of the green diamonds on top of the bones.

Well, i found this scrip over at some closed long time ago thread in Cgtalk.
It works really well for me... i managed to do the animation at a satisfaction level

Thanks guys, for the replys and help!

Here's a link to the source in case folks want more details:
http://forums.cgsociety.org/showpost.php?p=442055&postcount=5

wmendez also mentions in that thread using Isner Spine as alternative.
http://www.isner.com/isnerspine/spine_introduction.htm

how to do it !? http://www.youtube.com/watch?v=uOzyOx83GnU

Thank you for sharing !