is this pc any good for gaming if i put a better video card in it and also more ram and 500 watt psu
http://h10025.www1.hp.com/ewfrf/wc/...docname=c00471052&lc=en&jumpid=reg_R1002_USEN
http://h10025.www1.hp.com/ewfrf/wc/...docname=c00471052&lc=en&jumpid=reg_R1002_USEN