Rails spinoffs - Feb 2006 - Newbie Question - Dropping to a Sortable

Hi,

I am fairly new to Ajax and script.aculo.us - I have looked into the
mailling list archive but could not find a simple enough answer to my
problem.

I want to allow users to 
- drag an item from list A and drop to listB, leaving the list A item in
place (as in the Drag & drop shop example,
http://demo.script.aculo.us/shop)
- re-order list B to their needs. 

I do not want list A to be sortable !

Could someone please point me to an example that comes close to my
needs, or indicate wich combination of sortable/draggable/droppable I
should look at ?

Thanks in advance,

Jb