I'm looking for a CPU most likely AMD My most demanding computer usage is webcamming. I webcam a lot and use splitcam to split the feed to a couple sites at a time while playing movies at same time most of the time. I'm loking to keep the price under $125. Is it better to have a 3GHz Six core CPU or a 3.5 GHz Quad core? I don't game at all on PC. Also would a video card with DDR3 RAM improve performance over built-in graphics on my mobo.