I do not remember where I saw it or even heard it but I remember that
someone built into the dustcover/glare shield four or more flat computer
cooling fans, which took the hot air coming up from the intakes at foot
level and blew it up onto the canopy.  Apparently it was reorted to work
well and the installation was easy.  I intend to do this and purchased the
fans from a surplus depot.  They are brushless and do not make electrical
noise.  An idea anyhow.

Ian Crowe