Armatures and IK

Can anybody post a good tutorial on armatures because it is very difficult and I am diffidently struggling with it. The more help the better.
Thanks!

Maybe the following at the Blender Wiki for tutorials may be a good start …

http://wiki.blender.org/index.php/Tutorials/Links#Armatures_and_IK

Of the list found here :
http://wiki.blender.org/index.php/Blender_Summer_of_Documentation
the introductions to character animation and to rigging are about the best one can find.
If you want something better still, I can only recommend Bugman_2000 book:

Jean