I own that monitor. I really like it, and recommend it. The image is very sharp with exellent contrast and colors, and once you've used a perfectly flat screen like the Vision Master has, you can't go back. It was expensive, but well worth the cost. Remember that although it doesn't affect speed, the monitor is how you interact with the computer and if you are going to stare at it for hours at a time, getting a good moniter is a better investment than that new CPU or video card.
All the IIyama moniters I have seen have been exellent, even older models. Go for it.