giantbucket :
get a Galaxy GT610 and you can run double that. dual DMS59 outputs, each splits into a left+right DVI, each DVI runs at 1920x1080 so a L+R is 3840x1080.
except you have TWO DMS59 outputs. so the other one can be the same 3840x1080 and you can either put them side-by-side for a stupidly wide display, or stack one above the other for a 3840x2160 display.
the card costs around $60 on NewEgg. nVid chips. 1G memory. fine for 2D stuff.
Im ganna go with your solution, I tried finding dual DMS59 but most of them doesn't show how the connector looks. I needed a "DVI to dual DVI" but the pictures I see on some product are VGA to dual DVI.
BTW, Since you said "stupidity meaning this stretch the screen, like a game stretch across two monitor and it looks "wide"... If So I wont bother with it and probably go for a AMD video card in the near future...