The ROX Desktop is a desktop based around ROX-Filer - a powerful file manager.
Fast and highly customizable
Fast and easy to use. I am using rox pinboard with FVWM. Although FVWM seems to have XDND support , rox XDND seems to be better developed, and can easily drag-and-drop files into applications that support it. [1} www.newplanetsoftware.com/xdnd/  www.fvwm.org/documentation/manpages/unstable/FvwmDragWell.php?theme=default