Hey people. From some time now I've heard here and there about CPU bottlenecks regarding high/low end GPU's. I've been considering buying a high end GPU, but decided to ask your opinion on this matter first. I have an Intel Q9300 Core 2 quad CPU @ 2.5GHz and currently a ATI HD 4850. Screen is 25", 1920x1200. Is buying a too high end GPU a waste? Thanks in advance.