putting checkbuttons in a listbox

[valen1260]

I'd like to have a multicolumn listbox, with one column being a list of 
items and the other being a list of checkbuttons.  The user could check 
his "favorites" and then shorten the list to show only the checked items.

I have implemented the MultiListbox at 
http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/52266 .  I then 
tried attaching the checkbuttons to a listbox object.  To get them to 
display, I had to pack them, but in packing them, they just disregard 
the scrollable listbox and take as much room as needed.

Has anyone implemented anything like this?  Is there a way to put 
checkbuttons in a fixed-height, scrollable listbox or similar structure?