I've got two of those screens which I bought directly from SGI via egay (yes sgi has been selling them in lots of 10 for a couple of months) for about the same price including the Oxygen card.
This monitor is head and shoulders above any other flat-panel except maybe the Apple 23" flat-panel. It is brighter and more vibrant than any other monitor (and I use high-end CRTs at work) and it's update speed is near-instantaneous making it just fine for gaming or watching a DVD on. At a resolution of 1600x1024 it has the highest usuable DPI of any consumer monitor on the market.
If I were to buy another one, I would definitely get the converter box so that I could use it with any other video card, analog or digital.