Hey Guys and Gals, I have an old PC that I want to upgrade to make it moderately functional until I can afford to get a new PC next year. It is a compaq CQ5320y and I am unsure what sort of graphics card and sound card would work well with it. I am suffering from lag which I think has a bit to do with the amount of RAM but definitely the fact that the graphics are running off of the motherboard itself and the gpu is stock. I saw that the recommended AMD Atheon II X4 could run on it but the only thing I could find was used for around $50. Do you think it is worth it? And what is the best possible graphics card and sound card I could use to match it? I don't understand the ways that the processor is compatible with the various models of graphics and sound cards out there... Thank you guys for your help!