No but it will fade away towards the budget market. Microsoft will probably consider fueling competition for the Wii with a 20GB hard drive filled with community/arcade games for a lower selling point.
"Ok, 2 lasts things I need like a 500W psu and I heard ati sometimes has driver issues... is that true?"
Whether you choose ATI or Nvidia, you're bound to have driver problems with every new release, that shouldn't be a deciding factor. For ATI's catalyst software, I don't have much experience with it but look at other PC forums like Anandtech, you should find something in no time.
It's a possibility but I think Square Enix knows how popular this release would be and they would try to market this game through retail, the only way people would buy it that way is if they have a convincing remake.