would be nice to have one of the panel as QuickView.
Left side show as regular SS file view of your choice
Right side should view the contants of the file in folder or Folder size of selected folder on Left side.
If a file is highlighted, Right QuickView panel should display the contant of the file, if it picture view it, folder thumb nail it, if it MP3 sample it, if it HTML view it with ie view or mozilla view, if it AVI play it or view Codes/bitrates etc etc.
I use SS so much that I get lost in Windows Explorer!!