Krusader is a twin-panel (commander style) filemanager for KDE. It supports mime-type, complete drag n' drop, multiple filesystems, archives, bookmarks etc. Krusader's GUI is intuitive, and allows an easy access to all of your file-management needs.
The mission of libshell is to keep in place all patterns, functions and etc of shell as a library which are useful in day-to-day work activities. With libshell one can definitely obviate the task in hand.