There are a variety of ways of displaying multiple columns of data

Multiple fields:
   * [tablelist] (pure Tcl, edit, images, sort, reorder columns)
   * [mclistbox] (pure Tcl)
   * heirtable from [blt] (images?, heirarchical, sort)
   * listcontrol from [mkWidgets]
   * [tktable] (edit, images, non-contiguous cell selection)
   * TableList from [incr Tk]
   * WISH List by [David McClamrock]
   * [A minimal multi listboxes megawidget]
   * [treectrl]

Single field broken across multiple columns:
   * ListBox from [BWidget]
   * ?
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