Nope :). Because I really want around 18 inches of vertical height, and how will I fit a 3-foot-wide screen on my desk??

(Edit: Others have discussed the viewing angle issues with rotating a screen, but it is an option.)

Possibly with anamorphic lenses though, like wide film.

Can you explain the need for anamorphic lenses?

If you watch the 2:1 display through an anamorphic lens you can see it stretched as it's a 4:3 one.

Food for thought: can you create a Fresnel anamorphic lens?