I heard that Windows Vsta was arriving in 2006 and they allready have a beta1 version. Feel free to discuss way you feel about this new OS.
Too much control over your hardware from what I've heard... for example if your CPU bottlenecks your GPU they'll supposedly use the GPU for extra CPU power... I want my GPU running full power graphics no matter what. That's just one thing but I think I will be staying with XP