One thing that's important to remember before you rush out to buy one of these bad boys is that not all these high-end cards are going to work on the AmigaOne (or the Pegasos for that matter). The Radeon 9700 for example only supports AGPx4 and AGPx8, while both next-gen Amigas only handle AGPx2 (also AGPx1).
I'm thinking I'll probably get a Radeon 8500 - it's one of the best cards ATI made before the 9700. Of course, it all depends on driver support...
