Does anyone know what will be the minimum systems requirements for this game when it's released? I have a 500mhz Athlon PC with 512mb RAM and a Nvidea TNT2 board. Has anyone here run a beta/demo version of it? Will that be enough? It is being ported to Xbox still, right? I'd be better off just buying an Xbox than spending $200 on a new super-duper 3d board.