I have those monitors, but the 22" widescreen ones. They were on sale last week and I snagged up the rest they had
If your looking for a cheaper way to go, check out one of these...
http://www.matrox.com/graphics/en/gxm/
only thing i dont like is it makes one LARGE screen, not 3 seperate ones. you can still get a screen splitter application to run to actually devide the screens up. Im going to get one for my laptop