i'm in! the germans are joining the battlefield! latencylags ftw! XDand shadow, maybe give your computer another Gig Ram and he is still a very good gaming-station in my opinion. no one need high-end vista DX10 graphics. with a good configured windows (XP!!!^^) and a clean system, it should run without any problems.
Ich bin zwar auch Deutsch, aber damit es auch wirklich alle verstehen werde ich dir dennoch auf Englisch antworten.
I'm not sure if you know it already, but almost every DirectX 10 effect can be made with DirectX 9, too, the only bad thing is that it's a little bit more complicated to do it with DirectX 9. A lead designer of another game said this.
If I have one gigabyte RAM more, would I get a better performance in games like Supreme Commander/Demigod even if I have got a single core CPU?