Hello, my mom bought a comp about a year ago for just over 2k and its outdated and useless. Could I buy a new power suply and graphic card and have a new working computer? my rig is an asrock p4 mobo with an intel p4 prescot 2.93 ghz 1mb cache. 160gb sata hd and 1gb of ram. I would buy 500 watt power and an ati 1900xt. I guess my real question is would the x1900 run nice with such an old mobo and small hd?