I have an HP Media Center PC for about 2 years now equipped with a Radeon X300 128mb card. I am in need for something 256 but my PSU is only about 300W. I can't upgrade the PSU right because I am still paying this one off and my new gamer rig would be possible for another year or so. My game choices are slim because of the card and PSU. Anybody suggest a card I can get until I can do better that would work with my PSU. Please I am in dire need. I can't stand looking at Age of Empires III this way.