Give a look to:
<strong>EDE</strong> Equinox Desktop Environment.
[CDE](Common Desktop Environment)
<strong>UDE</strong> Unix DesktopEnvironment
Been both a EDE and a FVWM user for years!
BTW: No Windows has ever been good as much as 3.x was, and 9.x series too, especially when you chose the tiling display+file commander against the floating+bottom titlebar+start menu