In my experience, people always blow the specifications needed for an application out of proportion. This is definately seen with games. For example, people thought that Doom 3 would never run well unless you have a GeForce 6800 and 2GB of RAM, and even
then you couldn't play it at max settings. It turns out that it runs on high settings very well with a Radeon 9700 Pro. I can run it on Ultra settings with 4x AA and all the eye candy enabled at 1024x768 with a GeForce 6800GT and 1GB of RAM. My point is that
there's no need to worry about an OS running on a P4 2.4GHz or a Radeon 9800. I can see some having trouble with an unoptimized beta, but the RTM version I just can't see someone needing to buy a GeForce 6 or ATi X800 series card just to run Windows and see
the Avalon display engine in action. Chances are that any DirectX 9.0-compliant card (Radeon 9500 and above; GeForce FX 5200 and above) will do fine.